What Is Dell Backlit Keyboard Laptop?

What Is Dell Backlit Keyboard Laptop?

2022-03-07
Crowberry laptop replacement parts
16

On this page, you can find quality content focused on dell backlit keyboard laptop. You can also get the latest products and articles that are related to dell backlit keyboard laptop for free. If you have any questions or want to get more information on dell backlit keyboard laptop, please feel free to contact us.

Here are what set dell backlit keyboard laptop of Crowberry laptop repair parts apart from the competitors. Customers can get more economic benefits out of the product for its relatively long service life. We use the finest materials and advanced technology to give the product a better appearance and performance. With the improvement of our production line, the product is priced much lower compared to other suppliers.With powerful economic advantages and manufacturing capabilities, we are capable of designing and manufacturing exquisite products which are highly praised by our customers. Since launched, our products have achieved an increasing sales growth and won more and more favors from customers. With that, the brand reputation of Crowberry laptop replacement parts also has been greatly enhanced. An increasing number of customers pay attention to us and intend to cooperate with us.We provide unrivaled after-sales support and services for dell backlit keyboard laptop and suchlike products ordered from Crowberry; all of which deliver market-leading value.
more products
recommended articles
FAQ
Factors Affecting the Price of LED Display Screen
Factors Affecting the Price of LED Display Screen
How much is a square meter of full-color LED display in Zhengzhou, Henan Province? For customers who intend to buy LED screens, in addition to caring about product quality, price is also a crucial factor. However, the price of LED display screen is related to many factors. To understand the price more clearly, please look down:How much is a square meter of full-color LED display screen in Zhengzhou, Henan Province? It is closely related to the basic configuration of LED screen, including LED beads, chips, box materials, and even related to the processing technology, direct insertion or surface paste. Generally, die cast aluminum LED box is more durable than sheet metal box, but the price is also higher.At present, the most widely used outdoor P10 full-color display screen has a price range of 3000-5000 yuan / square meter. Due to the changes of market conditions, this is for reference only. The quotation of each LED display manufacturer will be different, and the quality and performance will be different. There are also cheaper ones, lower than 2000, but cheap products are generally not cost-effective, the quality is not guaranteed, the probability of problems is high, and after-sales is difficult. Hengyuan optoelectronics reminds you that the purchase price of LED display screen is not the only factor, which should be measured by comprehensively considering the regularity of the manufacturer, product use and environment.The factors affecting the price of LED display project are as follows:1. LED screen size: for example, if the customer customizes an outdoor LED display with a length of 10 meters and a width of 6 meters in lianchengfa, the salesperson will select P8 or P10 according to the size provided by the customer and give the specific scheme and price.2. Raw materials: including different types of LED lamp beads, lamp boards and boxes3. Control system: there are two common types: Nova and yangbang.4. Supporting equipment: computer, lightning arrester, sound, power amplifier, distribution cabinet and air conditioner, etc.5. Steel structure materials and installation: such as common wall mounted and column installation. The construction prices of the two are different. Others include the selection of frame structure materials.LED display engineering price = screen price * screen area control system cost frame structure cost transportation and installation cost distribution system cost, including power line, data line steel frame and civil engineering cost taxThe above is the information about how much a square meter of full-color LED display screen is. Only by clarifying the LED screen area, model and installation mode, the quotation obtained can have practical significance. Therefore, if you encounter an easily quoted LED display manufacturer, you generally can't believe it.Zhengzhou Hengyuan Optoelectronics (Zhengzhou Hengyuan display equipment Co., Ltd.) was established in 2007 and is the general distributor of lyade LED electronic display screen in Henan. Liyade Henan Branch, after more than ten years of development, the company headquarters has established a large spot warehouse in Zhengzhou Zhongli advertising market, and built Zhengdong center in Zhengdong New Area, with Flagship Exhibition Hall, office area, etc. It also has branches in Hohhot, Lanzhou, Xining, Yinchuan, Lhasa, Shandong and other cities. The company is mainly engaged in LED display screen, and its agent brands include: liad (the market value of LED display screen ranks first in the industry), Shanghai yangbang control card, Xi'an Nova control card, Changzhou Chuanglian power supply, hy full-color power supply, distribution cabinet, video processor and other LED display screen peripheral supporting products. Channel products, indoor, outdoor, small spacing 1.8, 1.5, 1.2, all-in-one conference machines are available.
What Is a High-quality Ac Adapter?
What Is a High-quality Ac Adapter?
What to look for in ac adapterThe use of an AC adapter is essential for many uses in the modern world. It is also important to have an AC adapter that is suitable for your needs. The following are some of the main things to look for in an AC adapter: 1. Quality and cost 2. Durability 3. Ease of use 4. Efficiency 5. Speed and portability 6. Environment and energy efficiency 7. Environmental friendliness 8. Features and accessories 9. I've used a number of different types of AC adapters and each one has its pros and cons.We all know that we need to be careful when buying an electrical appliance. It is important to check that the electrical appliance is not damaged before you buy it. This will help you get the best deal possible. There are some appliances that are expensive and don't cost much, but if you buy them from a cheap store, you will end up spending a lot of money. So, it is important to check that the appliance is not damaged before you buy it. Some appliances are cheaper than others and if you buy them from a cheap store, you will end up spending a lot of money.The most common mistake that people make when buying a new car is that they assume that the manufacturer will tell them what they need to know about the car. This is not always the case. You should be able to find out what you need to know about the car before you purchase it. A good place to start is by reading the vehicle handbook. The manufacturer will have information about the car, and if you don't know what you need to know, it is better to ask for advice from a professional.You are viewing an image of an ac adapter. If you want to use this image click on the photo to see the larger image. This ac adapter is designed to work with standard power outlets and has two USB ports. You can connect it to your computer via a USB port and have access to all your digital devices. It also has 3 HDMI ports and 1 DisplayPort port. The user manual also has information on other functions of the adapter. It is compatible with most standard computers and laptops. The maximum range of the power outlet is 0 to 10 volts. The cable length is 4 feet.What ac adapter brands are reliable?You need to find the answer to this question. If you don't know what kind of an ac adapter you need, then it is important to ask yourself the question, "Is there any way to fix it?You need to use an ac adapter is not easy to find. The problem is that there are so many brands out there. It is difficult to choose the right one. Some people prefer to buy a specific brand and try to find it in the market. If you need to buy an ac adapter, it is important to know what type of ac adapter you need. There are so many brands out there. You need to use an ac adapter is not easy to find. The problem is that there are so many brands out there. It is difficult to choose the right one.I don't know what to say. I just don't know. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it. It's hard to put my finger on it.If you're looking for a good value product, then go for the cheap and cheep products. If you're looking for a quality product, then go for the expensive and luxurious products. You can choose from many different brands of adapters, so it's important to check out the specs of each one before you buy it. This will help you make a good choice.How to buy a ac adapterYou are about to read an article that is likely to make you want to start searching for an answer to your own question. A good way to learn more about how to use an adapter is to go to an authority website and read up on the different types of adapters that are available. There are so many different types of adapters that it is easy to become overwhelmed by the amount of information that is available. So when you have decided that you need to use an adapter, it is a good idea to go through some basic information about the different types of adapters that are available.If you need to know how to use your old computer, there are several options that you can use to make it work better. In order to get the most out of your computer, you need to be able to access it from different computers. It is possible to do this by using an external keyboard and mouse. The only problem with using an external keyboard and mouse is that they may not be as good as a keyboard and mouse that you have in your home. This article will show you how to use an external keyboard and mouse.Most of the time, it is not necessary to get a spare pair of eyes. But if you have to use your computer or some devices in your home, it is important to get a spare pair of eyes. You can use the spare pair of eyes to take care of yourself and other people. It is also good to get a spare pair of eyes so that you can take care of yourself and other people. If you need to use your computer or some devices in your home, it is important to get a spare pair of eyes.Reasons why you should buy a ac adapterThere are many reasons why you should buy a good driver. But there are some more common reasons why you should buy a good driver. You can see here that it is important to read the instructions carefully before you use the product. And also, if you don't know how to use the product, don't use it. The problem with using a bad driver is that it will cause problems with your computer. It will cause errors and crashes. The best way to fix this problem is to use a good driver.Most of the time, people think that buying a new laptop is easy. They just don't know how to choose the right one. There are many things that they should do before they decide to buy a new laptop. The most important thing is to read through the tips and tricks that will help them make the right choice. This article will teach you about the different types of laptops that you can buy and how to choose the right one. It will also explain how to use the keyboard on a laptop.If you have to have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc. If you don't have a pc, it is essential to have a pc.You need to know that when you are in a hurry, you can use a cheaper version of a product. When you are buying a product, you should always check the price and make sure that it is still affordable. You should also make sure that the product is durable and well made. The downside to using a cheaper version of a product is that you may not be able to get the same level of service as you would if you were using a quality product.
Power Charger Adapter: the Best New Power Charger Adapter in the Market
Power Charger Adapter: the Best New Power Charger Adapter in the Market
Introduction to power charger adapterAs you know, there are many kinds of devices that can use the electricity. So it is necessary to be able to make sure that the device that uses the electricity is safe and clean. There are also some devices that can use the electricity but they may not be safe. In order to ensure that the device that uses the electricity is safe and clean, it is necessary to have a good knowledge about the device that uses the electricity. A good knowledge about the device that uses the electricity is necessary to be able to make sure that the device that uses the electricity is safe and clean.Most of the time when people see a blank page they think it is because they did not find what they were looking for. But if you are serious about getting your website visitors to come back and read your content, then you need to make sure that you have an efficient way to create content that will keep them coming back. In order to do this you need to use the right tools and get started with creating content that will keep them coming back.A paragraph for a blog titled 'A battery acid battery acid is a toxic substance that can damage your health and life in many ways. A battery acid is a toxic substance that can damage your health and life in many ways. A battery acid is a toxic substance that can damage your health and life in many ways. A battery acid is a toxic substance that can damage your health and life in many ways. A battery acid is a toxic substance that can damage your health and life in many ways. A battery acid is a toxic substance that can damage your health and life in many ways.Manufacturing Process of power charger adapterThere are no exact figures on the number of people who use electricity in the world. It is difficult to predict how many people will use electricity in the future. The most common way to reduce the amount of electricity used is to install more energy efficient appliances. You can do this by using less energy-efficient appliances. If you have an old refrigerator, it is possible to change it to a new one that uses less energy. There are several ways to reduce the amount of electricity used in your home. One way is to use less energy-efficient appliances.Process of manufacturing process of power charger adapter is important for any type of consumer electronics and many other industries. Many companies produce such kind of products, so it is necessary to be familiar with the manufacturing process of power charger adapter.The product is manufactured by using high quality materials and equipment. The manufacturing process of power charger adapter is clean and well organized. All parts of the product are clean and new. The quality of the product is excellent. The products are highly praised by customers. The customer's feedback is positive. The quality of the product is good. The customer's feedback is positive.Power supply is used to charge your phone or other devices. You can use it to power your computer or anything else that you need to be charged. There are many different types of power supplies available in the market today. It is important to note that they all have their pros and cons. The biggest advantage of using a power supply is that it will provide the user with enough power to keep up with his or her tasks. It is also good to note that there are some types of power supplies that you can use to charge your device while using them.Technical Specifications of power charger adapterThere are so many different types of computers and all of them have their own characteristics. There are many different types of computers and all of them have their own characteristics. Computers are usually small and light, so they don't need to be very big and heavy. There are so many different types of computers and all of them have their own characteristics. Computers are usually small and light, so they don't need to be very big and heavy. There are so many different types of computers and all of them have their own characteristics. Computers are usually small and light, so they don't need to be very big and heavy.The use of lithium ion battery to replace traditional alkaline batteries is expected to be greatly increased in the future. It is expected that lithium ion battery will become more and more popular in the future. In order to increase the efficiency of lithium ion battery, it is necessary to have a large amount of space for storing it. The more space, the better. And so, it is necessary to have a large amount of space for storing lithium ion battery. A good way to store lithium ion battery is to put it in a container.In order to get more attention from the people who are reading this blog, I will make some simple design changes to the content of this blog. This design change will be easy to understand and follow and will help me to improve the quality of the content on this blog. In order to make the design better, I will use a very simple typography that I will call 'DEMONSTRATION L:SIDESIZE'. It will be easier to understand and follow and will help me to improve the quality of the content on this blog.Some people think that technical specifications are only meant for use in academic and scientific writings. The problem is that it is very common to use technical specifications in everyday life. If you need to know how to use a particular device, you will need to read through the instructions and check if they are correct. In fact, there are many books that explain how to use a device in a very simple way. However, when you use a device that is not made by a professional, you may not be able to understand how to use it.Primary Competitive Advantages of power charger adapterOne of the most popular items in the electrical goods industry is the electric motor. The main function of the motor is to move the vehicle forward and backward, so that the vehicle can move forward and backward at the same time. When the motor is not working properly, the vehicle will not move forward and backward at the same time. In order to keep the vehicle moving forward and backward at the same time, the car has to have an electric motor. If the car does not have an electric motor, the car will not move forward and backward at the same time.Most of the time, people use a computer for working. A computer is a device that enables us to do work and does it by making use of some software. We use a computer to perform various tasks and we also use a computer to access information. So, when we use a computer, we can access information from different sources and this information is very useful for our work. In order to access information, we use a computer and so it is necessary to have a computer in order to access information. The computer has many features and so it is necessary to have a computer in order to access information.When it comes to energy, we are forced to choose between electricity and solar energy. When we use electricity, we are forced to use fossil fuels. When we use solar energy, we are forced to use nuclear energy. If we don't use electricity, we will be forced to use nuclear energy. And if we don't use nuclear energy, we will be forced to use solar energy. Solar energy is an energy source that uses sunlight to produce electricity. So when we use solar energy, we are forced to use solar energy. If we don't use solar energy, we will be forced to use nuclear energy.
Fujitsu Laptop Keyboard Price: What Are the Features?
Fujitsu Laptop Keyboard Price: What Are the Features?
What are the important factors to consider before purchasing fujitsu laptop keyboard price?Before buying fujitsu laptop keyboard, you should read through the following points: 1.1. There are two main types of keyboards that are available in the market today: top and bottom. The top type of keyboards is called high-end keyboards and the bottom type of keyboards is called low-end keyboards. 2.2. High-end keyboards are mainly made of stainless steel and their quality is very high. It is not easy to find a high-end keyboard that will not break down easily. 3.3.Most of the people don't have much time to spend on choosing the best laptop keyboard. They only need to buy one and they can get all the necessary information about the product from the company's website. It is easy to find out the company's price list and it is easy to compare the prices of different products.Some of the most important factors to consider before purchasing fujitsu laptop keyboard are as follows: your budget, computer brand, product features, and other factors. Some of the most important factors to consider before purchasing fujitsu laptop keyboard are as follows: your budget, computer brand, product features, and other factors. Most of the people don't have enough money to buy a new computer. And some of the people don't have enough money to buy a new computer. But it is better to have a computer than not have a computer.Some important factors to consider before purchasing fujitsu laptop keyboard price? There are some important factors to consider before purchasing fujitsu laptop keyboard price?Some of the most important factors to consider before purchasing fujitsu laptop keyboard are: cost, features, brand, reliability, support, size, color, appearance, memory, type, stability, weight, durability, size, balance, ease of use, user experience, and warranty. So what are the important factors to consider before purchasing fujitsu laptop keyboard? A good question. I'll try to explain it in a simple way. You need to understand that there are two main factors to consider before buying a laptop. The first is the hardware. The second is the software. And the third is the service.Size of fujitsu laptop keyboard priceThe size of fujitsu laptop keyboard price is an important issue for many people. A good laptop will be able to do more than one thing and a good laptop will be able to do more than one job. It is not just about having a big desktop, it is about having a small desktop that can do more than one job. People have different skills and talents and some people are good at some things and some people are good at other things. There are also different levels of expertise in the world and there are different jobs in the world.Sell my laptop by cleaning it is easy to do. There are many companies that will clean your laptop and give you a good price for it. If you want to buy a laptop then you can go to www.auctionline.com and see if there is any laptop that is in good condition and clean. If you don't have time to clean your laptop then there are companies that will give you a good price for it.The internet is growing faster than ever. There are more computers and tablets in the world than people. People who work in an office or school use more computers than they do. The percentage of people who work in an office or school that have laptops increased from 1% to 10% in the last decade. It is not easy to be a freelancer and still work as a freelancer. So how do you make money by working as a freelancer?The size of fujitsu laptop keyboard price is an important factor in your decision to buy a laptop. The key point is that the size of the keyboard affects the overall size of the computer. So, if you want to buy a large computer, you should choose a larger size of the keyboard. If you want to buy a small computer, you should choose a smaller size of the keyboard.How to install fujitsu laptop keyboard priceFujitsu laptop keyboard price is very expensive. You can use this problem to make a mistake in your post. A lot of people find it difficult to write good content and a lot of times they think that they can just paste their content in the body of the blog and it will work fine. The problem is that it's hard to put it in the body of the blog and you can't put it in the body of the blog without having to edit it.I'm sure you're tired of looking for a good deal on a new laptop. The key is to find a laptop that is just right for you. Most laptops have features that are very different from each other. A good laptop will be comfortable to use and offer plenty of storage space. It will also be easy to set up and take down. You can buy a laptop that has all the same features as a desktop computer, but it will be much easier to use. If you are going to buy a laptop, you should go for a desktop computer because it will be easier to use.You need to install fujitsu laptop keyboard price is very important. You can find out how to install fujitsu laptop keyboard price in this article. It is very important to know how to install fujitsu laptop keyboard price in this article. If you want to know how to install fujitsu laptop keyboard price in this article, you can read the following information.You can use the mouse to control the function of the computer. You can also use the keyboard to change the volume of the computer. The keys are located on the top of the keyboard and they are connected to the main console by way of a cable. A software program that will allow you to change the key codes is available for free in the operating system that you have installed on your computer. If you don't have the operating system, you can download it from the internet.
[LED Technology Broadcasting] Five Technology Highlights of LED Display Screen
[LED Technology Broadcasting] Five Technology Highlights of LED Display Screen
Technology 1: how to automatically switch on and off the LED display screen at fixed time1 BIOS setting fixed-point automatic power on every dayStep 1: start the LED display server computer, press del, enter BIOS, and then select "power management features", enter. Find the item "restore on AC / power loss" in the power window, press enter, and then set its value to "power on" through the direction key;Step 2: select "resume onrtc alarm" and press enter, and then set its value to "enable" through the direction key; Step 3: select RTC"Alarmdate" press enter, and then set its value to "every day", indicating that the same operation is performed every day. According to the same method, respectively "RTC alarm""Second" is set to "07", "55" and "00", which means that the startup time is "7:55:00" in the morning. After all settings are set, press F10 to save and restart.Because the BIOS of different motherboards is different, the settings of some motherboards may be a little different from those above, but just remember to find "wake up" or "resume by" in power managementThe word "alarm" is OK, because this is the option to set the timed startup.2 With the help of shortcuts, the display information file is automatically run after startupStep 1: associate the display file with the display program. For example, the display file is "common. Led", and the program to open it is "led. Exe". Just click "common. L e" with the right mouse buttonD "icon, click" attribute ", click" change "button in the" general "option, find the program" led.exe ", and click" OK ";Step 2: generate a shortcut to the display file. Right click the "common. Led" icon and click "create shortcut" to display a "shortcut to"Click "common. Led" icon, then click "start", "run" and "Browse" in the lower left corner of the computer display screen, find the "shortcut to common. Led" file and confirm it, and copy the ""... Shortcut in the "open" columnTo the common. Led. LNK ''. Note: if you click "OK", you can directly open the display file "common. Led";Step 3: set the startup item in the super rabbit. Download the super rabbit software on the Internet and install it into the LED display server computer. Open the "magic settings - create your own system" in the "rabbit tool", right-click in the "startup program", select "new project", and paste it in the "command line"D: Led shortcut to "common. Led. LNK", the title is set by yourself.After this setting, the startup will automatically run the display file "common. Led", which has the same effect as manually opening "common. Led".Technology 2: how to detect the quality of LED display pixels from the unit board"Pixel" is a unit used to calculate digital images. Like photographic photos, digital images also have continuous shades. If we enlarge the image several times, we will find that these continuous tones are actually composed of many small square points with similar colors. These small square points are the smallest unit "pixel" of the image. This smallest graphic unit can be displayed on the screen, usually a single dye point.According to the color principle, we know that red (R), green (g) and blue (b) are called three primary colors. These three colors can be combined to obtain any color from black to white. In the classification of LED display screen, there are monochrome display screen, two-color display screen and full-color display screen. Monochrome is relatively simple. You only need to select any one of the three primary colors to realize monochrome display. In practical application, there are many red LED lamps. In this way, a red LED is a pixel.The two-color display screen is similar to the monochrome display screen. As long as any two of the three primary colors are selected, the two-color display can be realized. In practical application, red and green are often selected. When red and green are on at the same time, yellow can be realized. Therefore, the two-color display can realize three colors: red, green and yellow.
How to Choose the Right Best Laptops to Replace Desktop
How to Choose the Right Best Laptops to Replace Desktop
What are the important factors to consider before purchasing best laptops to replace desktop?There are two main factors that determine the laptop you choose to buy are: hardware and software. The hardware is the computer itself and the software is the software that helps you use the computer. Hardware can be your laptop or desktop, but if you have an Apple or Windows laptop, then you need to know what it is. You need to know what it is so that you can choose the best laptop to replace desktop.It is very important to make sure that you get the best laptop for your needs. There are so many different types of laptops available today, and they all have their own features and specs. The most important thing to remember is that if you want to buy the best laptop to replace desktop, you need to make sure that you choose the best laptop for your needs. So, what are the important factors to consider before purchasing best laptops to replace desktop?The laptop industry is expected to grow by more than 10% in the next five years. The demand for laptops is expected to grow at a CAGR of 12% from 2013 to 2022. And with an average price of USD $800,000, it is expected to reach USD $500,000 by 2024. In order to keep up with the market, there are several companies that provide high-end laptops that can be used by professionals and hobbyists. They also provide affordable laptops that are suitable for individuals and families.There are many different laptop models available today. There are two main types of laptops that you can choose from. The first is the desktops that are used by professional computer users. The second is the laptops that are used by ordinary people. So if you are looking for a laptop that will work for you, then it is best to buy a desktop model. In this case, you will be able to use your laptop for all your daily work. You will also be able to use your laptop for school work and other purposes.Size of best laptops to replace desktopThe laptop industry is now growing at a very fast rate. And as we know, there are still many computer manufacturers who are not ready to produce new laptops that can meet the needs of all of us. This means that we need to find a laptop that will be compatible with our computers and computers will not work well with other laptops. That is why it is important to have a laptop that will be able to perform well in the workplace. That is why there are many laptop manufacturers who are working on creating new laptops that will be compatible with their computers.The internet is getting bigger and faster. We can use laptops as much as we want, but it's not enough. The future of the world is going to be built on computers. There is no other way to build a large-scale economy than computers. People will work longer hours and make more money, but computers will be more powerful and cheaper than ever before. Computers will take up less space, which will help us move faster and easier.I don't know what you are talking about. You are saying that laptops are very big and that there are many more people who have small laptops than large laptops. If you think that laptops are so big, then you are probably thinking about a laptop that is too small. I am not saying that laptops are too small, but I am saying that laptops are too big. It is very easy to get lost in a sea of computers and it is easy to forget that computers are bigger than they seem. Laptops are just as big as desktops, but computers are smaller than they seem.We use cookies to give you the best experience on our website. If you continue to use this site, you are consenting to their use. Learn more about their use here.How to install best laptops to replace desktopI can't believe that people are using laptops as their main mode of work. laptop computers are still an option for many people, but if you're in a rush and don't have time to go through the whole process, then it's better to just go for a PC. I use my laptop as my main mode of work, and I've found that it's much easier to use than my desktop computer. I don't have to type all the instructions on my laptop every time I want to do something, and I don't have to wait for hours to get back to my desk.If you are looking for a laptop that is not easy to use, then you need to be careful about what you choose. They are very different from each other and they have different performance. The first thing that you need to do is make sure that you are using the best laptop that you can afford. You can buy a new laptop and get it as soon as possible. This will save you money and time and will also improve your productivity. There are also good laptops that are affordable and will last for a long time.The world is going to end in about 2 weeks. There are two options: we can choose to have a simple, basic lifestyle or a lot of gadgets that will change our lives forever. In the end, we have to choose between one or the other. The choice is ours. We have to decide what we want to do and what we want to do it for. And if we don't decide what we want to do, we won't be able to do it. It is up to us to decide what we want to do and what we want to do it for.
How to Realize Real Energy Saving and Environmental Protection for LED Display Screen
How to Realize Real Energy Saving and Environmental Protection for LED Display Screen
As an important display device in contemporary economic life, LED display is widely used in more and more occasions. In the process of realizing the value of LED display, there are also some problems, such as energy conservation and environmental protection. LED display screen is a product with large power consumption. How to reduce product energy consumption and realize energy conservation and environmental protection is a problem that every enterprise should think about. So what performance should LED display have to achieve real energy conservation and environmental protection? Let's analyze it.In order to adapt to different weather and make the display screen achieve the best display effect, the LED display screen has specially designed a 256 level brightness adjustment device to ensure that the whole LED display screen can achieve the best display effect in various environments.2 Special protection technology of environmental protection materialsUsing environmental protection materials and special technology, the LED display module can achieve the environmental protection purpose of waterproof, dustproof and ultraviolet protection without glue filling. When selecting display products, customers need to clarify their needs for LED display, such as product application site, environmental analysis, expected value of products, and comprehensive analysis of various reasons, so as to select appropriate products.The heat emitted by the LED display screen is high when it works. In order to ensure that the whole display screen system operates in a stable state, the research on the display screen heat dissipation system has a set of strong convection heat removal system. In addition, the heat conduction effect of aluminum makes the heat dissipation system more stable and reliable.The LED display driving chip adopts the international advanced LED display special chip system, which is unique in the field of full-color LED display. Combined with the characteristics of the chip, the constant current noise reduction technology is studied and formed to minimize the impact of other noise sources such as power supply on LED display.
The Design of a Small Planar Transformer / Inductor Is Introduced in Detail
The Design of a Small Planar Transformer / Inductor Is Introduced in Detail
1. IntroductionWith the rapid development of electronic information technology, various electronic devices have entered the SMT (surface mounting technology) era, and electronic devices are increasingly required to be light, thin and miniaturized. Although the traditional power electronic transformers and inductors have played an important role in the era of electronic tubes and discrete transistors, they can not be used in today's modular electronic equipment because of their large volume. How to develop small planar electronic transformers and inductors is the focus of designers. This paper describes the design and manufacture of 230khz, 120W small planar transformer and 20a, 10 with multilayer printed board manufacturing technology, NC machine tool processing technology, surface coating technology and high frequency and low loss ferrite core H high current filter inductor.2. Circuit form and technical indexes of transformer and inductorFigure 1 shows the main circuit of active clamp / reset single ended forward converter. The circuit has zero voltage conversion function, which is conducive to improve efficiency and reduce EMI / RFI.The circuit consists of vq2, VD2 and CCL, which provides a low resistance working path for the energy storage transfer of leakage inductance L1 and excitation inductance LM. After vq2 is turned on, CCL continues to be charged, and the current of the clamping circuit decreases in a resonant manner. Since the rectifier VD1 is cut off, L1 and LM are connected in series, and the resonant frequency is determined by L1, LM and Cl, there are certain inductance requirements for the primary of the transformer.In addition, after the circuit VQ1 is cut off, the voltage polarity of the transformer winding is reversed and Ca is charged. During the charging process, the magnetization current gradually decreases. By properly selecting parameters, vq2 is turned on before the zero crossing of the magnetization current, which makes it possible to change the direction of the magnetization current. The magnetization current is reversed and the clamping voltage UCL is reversed to the primary winding of the transformer, The working area of the drive transformer B-H extends to the second quadrant and the third quadrant. At the same time, the discharge of CCL capacitor energy storage is transferred to L1 and LM storage. After VQ1 is turned on, the B-H working point starts from the third quadrant, and the normal working area is basically symmetrical with the origin of the B-H axis. In this symmetrical area, the unidirectional variation value of B-H is consistent with that of the traditional single ended forward converter. In order to maintain normal output regulation, the same volt second product is applied to the transformer, and the resulting core loss is consistent with that of the single ended forward converter. During actual operation, the maximum working magnetic flux density (BM) shall be selected. The transformer can work in - BM BM, so B = 2bm, as shown in Figure 2.T1 in the circuit is the transformer we need to design, with working frequency f = 230khz, input voltage Vin = 230V and primary inductance LM = 117 H 10%, maximum working ratio 0.45, output voltage Vo = 5V, output current IO = 20a, Lo is filter inductance, Lo = 10 H. The working environment temperature is - 45 50 , the temperature rise is 50 , the test voltage is 2KV, the height of transformer and inductor is 12mm, and the length and width are about 40mm.3. Plane transformer, inductor core and structure3.1 magnetic coreAt present, the magnetic materials used in power switching transformers include permalloy, amorphous alloy, ultramicrocrystalline alloy, ferrite and other materials. Ferrite material is selected to make magnetic core. In order to make full use of effective space, magnetic core with thicker core column and wider window width must be selected, which is conducive to reducing turns and current density. In view of the limitation of the overall height, necessary processing is also required.3.2 windingIn the traditional winding, the coil is wound on the skeleton, and the conductor is of circular section. In addition, when the conductor flows through the high-frequency alternating current, it is also limited by the penetration depth of the skin effect. The calculation formula isWhere is the penetration depth (mm), Is the angular frequency, = 2f(rad) Is the conductor permeability (H / M), Is the conductor conductivity (s / M).The relative permeability of copper is equal to 1, which is the vacuum permeability, thenSubstituting this into the above formula can be simplified toWhere f = 230khz, the available conductor diameter is 2 = 0.275mm. Therefore, under the condition of high current, the transformer winding adopts multi strand winding, which will greatly reduce the utilization rate of magnetic core window. We decide that the primary winding and auxiliary winding with low current are made of multilayer printed board and double panel respectively, and the secondary winding and filter inductance winding up to 20A are made of folded copper strip with rectangular section, so as to make the most effective use of window holes.4. Transformer design4.1 the core size is determined by the power transmission capacityThe power transmission capacity of a transformer depends on the product of the area of the magnetic core column and the area of the window hole, APWhere: Pt is the sum of the primary and secondary power of the transformer. When the efficiency of the transformer is high, twice the output power can be taken. KJ is the structure constant of the magnetic core, which is between 365 and 632, and we take 450. B is the incremental magnetic induction intensity. According to the circuit B = 2bm, BM is taken as 0.1t, then B = 0.2T. F is the operating frequency 230 kHz. Ku is the window utilization, between 0.3 and 0.4. KF is the waveform coefficient, 4 for rectangular wave and 4.44 for sine wave.Substitute the above data into the calculationAfter repeated comparison and calculation, we selected PQ40 magnetic core and ground it into the size we need. As shown in Figure 3, the AP value is only 0.69.4.2 winding(1) Primary turns calculationWhereUp1 is the minimum amplitude of transformer input voltage 230V, B is the incremental magnetic induction intensity 0.2T, Is the maximum working ratio of 0.45, and SC is the cross-sectional area of the magnetic core of 1.74mm2.Substitute the above data into the calculationW1 = 12.93 turns.(2) Secondary turns calculationWhere: up2 is the voltage amplitude of secondary winding,Uo is the output voltage 5V. U2 is the voltage drop of rectifier tube and line. If 1.7V is taken, up2 = 14.889v, W2 = 0.837 turns.After adjusting the number of turns to an integerW1 = 15 turnsW2 = 1 turn4.3 winding currentIgnoring the exciting current, the effective values of the primary and secondary currents are calculated according to the unidirectional pulse square wave,4.4 winding form and temperature riseSince the effective value of the primary winding current is 0.895a, we use 8 layers of printed boards, each layer has 7.5 turns, 4 layers are connected in parallel, and then 7.5 turns are connected in series to form 15 turns of primary winding, as shown in Figure 4.When the primary winding works at full load, the loss is 1.07w.The effective value of the secondary winding current is 13.42a. Considering the limitation of skin effect penetration rate, we use two copper strips with a thickness of 0.3mm, which are processed into the shape shown in Figure 5 by CNC machine tool. When the secondary winding works at full load, the loss is 0.709w. One turn of auxiliary winding and one turn of feedback winding are made of double-sided plate, and the shape is shown in Fig. 6. Since the current is very small, the loss is negligible.According to the data, the iron loss calculated from the working frequency, BM value and working temperature is 1.296w.The appearance of the transformer after assembly is shown in Figure 7, and its heat dissipation area is s = 42.88cm2. Dissipated power per unit area q = 0.0524w/cm2. According to Fig. 8, the temperature rise is 42 . The measured temperature rise at full load is 34 .5. Filter inductance designIn the design of filter inductor, we use pq32 magnetic core and grind it into the shape and size shown in Figure 9.5.1 determine the number of turns of filter inductance WWhere l is the inductance required by the technical index. The leakage inductance in the case of atmospheric gap accounts for 20%. The core inductance only needs to be 0.8L. LG is the air gap length. Considering that the inductance requires good linearity, LG is taken as 1.8mm. AG is the equivalent section at the air gap, Ag is 1.2 times the magnetic core section, Ag = 1.267mm2.Substitute the above data to obtainW = 9.52 turns, rounded to 10 turns.5.2 determination of winding form and temperature rise calculationConsidering that the inductance current reaches 20a, only the ripple frequency is 230khz, and the main component is still DC current, a copper strip with thickness of 0.45mm and width of 4.5mm is used as the winding.Processed by CNC machine tool, the folded shape is shown in FIG. 10 and expanded as shown in FIG. 11.After calculation, the winding section is s = 2.025mm2, the winding length is L = 0.612m, and the winding loss PM = 2.7992w.Since B is very low during operation, the iron loss is ignored.The outline of filter inductor after assembly is shown in Figure 12. According to the overall dimensions, the heat dissipation area is s = 27.04cm2, and the dissipated power per unit area is q = 0.10352w/cm2. According to Fig. 8, the temperature rise is 65 . The measured temperature rise at full load is 48 .6. Analysis that the temperature rise of transformer (filter inductor) assembled on aluminum substrate with radiator can be greatly reducedBecause the contact area between the mounting bracket and the base plate of the traditional transformer is less than 1% of the overall area, and no measures are taken, the base plate is not included in the scope of helping heat dissipation. The good contact area between the plane transformer and the base plate can reach about 25%, which greatly improves the heat dissipation conditions.Heat conduction refers to the study of the way and effect of energy transfer of each part of the object in direct contact.We will discuss the effect of transformer assembly on aluminum substrate with radiator. The following conditions must be known:The theoretical temperature rise of transformer is 42 .After the transformer works at full load for several hours, the actual temperature rise of the bottom surface in contact with the aluminum substrate is 29 . The surface temperature rise of the radiator in contact with the cold plate is 27 .According to the conversion of 1 kW · H = 859.8 kcal, the total loss of transformer is 2.051 w · H = 1.763 kcal.Heat Q derived from heat conduction engineering calculation under stable working condition of multi-layer flat wall:Where: t1-t5 is the temperature difference of multi-layer surface wall of 2 . Rr1... RR4 is the total thermal resistance of multilayer flat wall (· H / kcal). Is the thickness of flat wall of each layer (m). Thermal conductive adhesive 0.0001, copper foil 0.00015, medium 0.00015, aluminum substrate 0.002. Is the thermal conductivity of each layer of flat wall (kcal / (m · h ·). Thermal conductive adhesive 0.194, copper foil 330, medium 0.26, aluminum substrate 204. A is the contact area between the bottom of the transformer and the flat wall 0.00104m2.Substitute the above data to obtainQ=0.3873(kcal)That is, the aluminum substrate with radiator transfers 21.96% of the total loss of 2.051w of the transformer, so it is reasonable to reduce the actual temperature rise by about 20%.In the same way, the effect of aluminum substrate with radiator on filter inductance can be calculated, which will not be repeated here.7. ConclusionThe transformer and filter inductor designed above have passed the electrical performance test, high and low temperature cycle test and high and low temperature storage test, and their performance meets the requirements.Through the transformer and filter inductance designed in this scheme, the following conclusions can be drawn:The folded copper strip processed by NC machine tool not only meets the high frequency limited by the penetration rate of skin effect, but also has a rectangular section. In addition, the copper strip surface is insulated with paint, which greatly improves the utilization rate of window holes. Compared with manual winding, the winding of folded copper strip, multilayer printed board and double-sided board has good consistency of distribution parameters and is convenient for circuit debugging.For switching transformers and filter inductors with operating frequencies above 200kHz, they can be designed into small planarization, and their height can be reduced to the same order of magnitude as components such as integrated circuits and capacitors. They can also be assembled on aluminum substrates with radiators. With the help of radiators, the temperature rise can be reduced by more than 20% under the condition of the same dissipated power.In case of mass production, the magnetic core shall be redesigned as required to increase its bottom area and make the window more reasonable, and the temperature rise and size of transformer and filter inductor will be further reduced.
Keyboard Laptop Msi: the Best New Keyboard Laptop Msi in the Market
Keyboard Laptop Msi: the Best New Keyboard Laptop Msi in the Market
Why keyboard laptop msi?Because of the lack of computing power. The key to using laptops in a professional setting is to have enough computing power to use the computer properly. Computers that are not good at working with large amounts of data can make it difficult to do the work that you need to do. A laptop that is not well-equipped for use with large amounts of data can make it difficult to do the work that you need to do. If you are going to use a laptop that is not well-equipped for use with large amounts of data, then you need to get a better laptop.It is difficult to explain how important it is to have a good laptop. A good laptop is an excellent computer that will be useful for any job. If you are going to work in a company, then you will need to have a good laptop. You will also need to have a good notebook computer that will be useful for all your needs. It is very important to have a good laptop because it will make your life easier. The best laptop is the one that will make your life easier.In general, when people say that they have problems with the keyboard on a laptop, they mean that they have problems with the mouse. In some cases, it can be difficult to get the mouse to work properly. So if you need to use the mouse, then you need to change the way you use the mouse. It is important to note that there are also some ways to fix the problem of the mouse.When people are asked to give examples of computer programming, they tend to focus on simple tasks. A good example of this is when someone asks, 'What is the difference between an X and a Z?' They may not be able to explain the difference, but they will have a good idea of what it is. I would recommend that you do the same.What to consider when buying keyboard laptop msiIf you're not satisfied with the results of your purchase, we will provide you with a full refund. We are more than happy to offer a replacement or a refund if you don't like the product.With a mouse and keyboard there are two types of computers. The first type is the desktop computer that is just an empty box. The second type is the personal computer that is just a simple device that you use to make your life easier. In this case, the desktop computer is just a small desk that has some software and it has no CPU or memory. The personal computer is just a notebook that has many functions and it has many peripheral systems. It also has some printers and it has some network connections. So, what do you need to buy a desktop computer?While there are lots of different kinds of keyboards, you should know that some of them are just as comfortable as their predecessors. When buying a keyboard, you should always go for the one that is best for you. If you don't know what to look for, you can read through some of the tips and tricks mentioned here to learn more about what to look for.You are looking for a good computer that will work well for you. So choose a computer that will be useful for you. And it is also important to have a good desktop. If you have a desktop, then it will be easier to use your computer. It will be easier to use your computer.When you buy a computer, it is important to have the right software and hardware. The software and hardware are usually a big part of the cost of a computer. When you buy a computer, it is important to have the right software and hardware. The software and hardware are usually a big part of the cost of a computer. When you buy a computer, it is important to have the right software and hardware. The software and hardware are usually a big part of the cost of a computer. When you buy a computer, it is important to have the right software and hardware.Find the perfect keyboard laptop msi for youYou will find a lot of good keyboards that are compatible with different operating systems. A good laptop is important for many reasons. The main reason is that it is easy to use and also provides you with a variety of functions. It is important to be able to work comfortably in a particular type of computer. It is also important to be able to work well in a particular type of computer. So if you are looking for a good laptop then it is important to have a good one.It is possible to make use of laptops that are compatible with most software applications. Laptop keyboards are generally quite large and their size makes them easier to use. You will also find that they are easier to work with than a PC and will be much easier to clean up. If you have any questions about your laptop, then it is best to ask your computer manufacturer or service provider.This is a really good question. The first problem with finding the perfect keyboard laptop msi for you is that there are so many choices out there.You need to choose a keyboard that will work for you. When you are searching for a new laptop, it is important to make sure that you are using a keyboard that will work for you. The problem with using a keyboard that is too small is that it can be difficult to type and your fingers can easily become stuck in the keys. You should also be sure that the keyboard that you choose will be comfortable for you to use. For example, some keyboards are great for playing games while others are great for working on documents.No one is sure what to make of the fact that people who use laptops are spending more time in front of a screen than in front of a computer. I am not sure if it is because they are used to working on big files or because they have lost the joy of being able to focus on a task without distractions. In any case, there is no denying that laptops are becoming more and more commonplace. It is easy to work from home and in fact many people do so.Insider tips for using keyboard laptop msiIt is easy to understand how to use keyboard laptop msi. It is also easy to understand how to use keyboard laptop msi. You can easily understand how to use keyboard laptop msi. If you are able to understand how to use keyboard laptop msi, you can easily understand how to use keyboard laptop msi. If you are able to understand how to use keyboard laptop msi, you can easily understand how to use keyboard laptop msi. If you are able to understand how to use keyboard laptop msi, you can easily understand how to use keyboard laptop msi.The use of keyboards in your everyday life is something that many people are doing more and more. People are doing more and more with keyboards in their daily lives. If you are not using a keyboard in your daily life, then you will not be able to do anything. So, if you are looking for an insider tip to use a keyboard in your daily life, then you need to read this article. This article will tell you about some important information that you need to know about using a keyboard in your daily life. You need to know that there are different kinds of keyboards that you can use in your daily life.We have been working on our own new computer, and we are happy to announce that we have successfully installed it. If you are looking for a good way to improve your typing skills, then you need to learn how to use the keyboard. It is not always easy to use the keyboard because it is very wide and there are many tools that you can use to help you with your typing. In this article, we will teach you how to use the keyboard in a simple way. The first thing that you need to do is to know how to type the letters in the order that they are listed in the list.
The New Best Way to Get the Greatest Hasee Laptop Keyboard!
The New Best Way to Get the Greatest Hasee Laptop Keyboard!
The introduction of hasee laptop keyboardThere are many companies that provide these kind of products. Some of them are named as such as Dell, HP, Asus, Lenovo, etc. In order to be able to use these products, you need to have the right kind of computer and operating system. So if you need to use these products, you need to know how to use them.I'm glad that you're using your laptop. This will make your computer run faster and be easier to use. If you have any problem with your computer, it is better to get it fixed immediately. A computer is not just a device that can perform some tasks. It is a complex machine that performs many tasks and takes up a lot of space. Computers are designed to perform many tasks and take up a lot of space. When you use your computer, it takes up a lot of space. When you use your computer, it takes up a lot of space.This is the world of hasee laptop keyboard. With its incredible quality and unique design, hasee laptop keyboard is now more popular than any other type of laptop keyboard. And it is easy to use. The keypad on hasee laptop keyboard is small and light and very easy to use. You can access the keys quickly and easily.As you know, there are many kinds of computers available in the market. The most common computer is the desktop computer. It is used by both individuals and businesses. There are also different types of computers that are used by people and businesses. A desktop computer is a computer that is large and heavy. It is not portable and it is not small. The main function of a desktop computer is to process information. A laptop computer is a computer that is small and light. It is portable and it is not large. It is used by people and businesses.Tips for choosing hasee laptop keyboardIt is easy to get bored with using your laptop, but you can still make it work by using the right features. If you are not satisfied with your laptop, then it is possible to change it. You can change the function of your laptop by changing the functions of the keyboard. The good thing about using the right functions is that you can use it for many years and never have to replace it.When you have to buy a laptop, it is important to consider your budget. In this case, it is very important to choose a laptop that will suit your needs. Choosing a laptop that will suit your needs is very important because you will be using it for a long time. When you need to buy a laptop, it is important to choose a laptop that will suit your needs. It is very important to choose a laptop that will suit your needs because you will be using it for a long time. When you need to buy a laptop, it is important to choose a laptop that will suit your needs.When it comes to choosing hasee laptop keyboard, there are many things to consider. If you want to have a great experience with your laptop, you need to be able to use it as well as you can. There are so many things that you can do to improve your laptop's performance. So if you want to have a great experience with your laptop, you need to be able to use it as well as you can. So if you want to have a great experience with your laptop, you need to be able to use it as well as you can.Using a laptop is an easy way to stay on top of the latest trends in technology. However, when you are working on a project that involves using your laptop to work on it, you need to know how to be careful about what you are doing. If you have used your laptop to work on it, you will know that there are some risks that you should not take. So, here are some of the things that you should do before you use your laptop to work on it.How to use hasee laptop keyboard?I don't know how to use hasee laptop keyboard is that it is hard to understand. I would recommend using an online resource like www.sueandloser.com to learn how to use hasee laptop keyboard. If you need a reliable website to learn how to use hasee laptop keyboard, then www.sueandloser.com is the right place to go. Sue andloser is a free website that provides information about different uses of hasee laptop keyboard. It also provides users with tutorials and helpful videos on how to use hasee laptop keyboard.When you have been using hasee laptop keyboard, it is very easy to forget that you are using it. It is not only because of your habit of using it, but also because of the typing speed and also because of the lack of attention that you give to it. If you want to use your laptop with better efficiency, then you need to know how to use it properly. You need to be careful when you use your laptop and make sure that you are using it properly. When you use your laptop properly, it will be easier for you to write better and faster.If you need to write something that is simple and quick, then have a look at the uses of hasee laptop keyboard. For example, if you need to write something that is short and easy to understand, then you can use hasee laptop keyboard. If you need to write something that is complex and complicated, then you can use hasee laptop keyboard. In this case, the keyboard will be very easy to use. You can also use the keyboard to type in any text that you want to be easier to read.The purpose of the website is to make it easier for people to learn how to use hasee laptop keyboard. In order to help people learn how to use hasee laptop keyboard, the website will create videos that will explain how to use hasee laptop keyboard. The website will also provide online examples of how to use hasee laptop keyboard. People who are interested in learning how to use hasee laptop keyboard can watch the videos and practice using hasee laptop keyboard.The specifications of hasee laptop keyboardWhen you need to make sure that your computer is running well, it is important to know how to fix the problems that can occur. You can do this by reading through the following information. If you need to fix a problem, then you should check out the following information. In order to fix a problem, you should read through the following information. If you need to fix a problem, then you should check out the following information. In order to fix a problem, you should read through the following information. If you need to fix a problem, then you should read through the following information.There are a lot of different types of laptops and desktops, but if you want to buy a laptop that will be easy to use and be comfortable to use, then you need to look for a laptop that is compatible with your operating system. In order to do this, you need to know the type of laptop that you are buying. There are many different types of laptops and desktops, but if you want to buy a laptop that will be easy to use and be comfortable to use, then you need to look for a laptop that is compatible with your operating system.As far as I know, there are no design guidelines for laptop keyboards. I'm sure there are good design guidelines for laptops, but I'm not sure how to create them. It is important to have good design guidelines for laptops, but how to create them?Many people are finding that they can get more done in less time than they thought possible. They also find that they can use their laptop to help them be more productive. It is important to have good laptops for working and using the internet. Laptop computers are becoming more popular as more people start using them. People who use laptops for work also use them to do many other things, such as playing online games, watching movies, surfing the web, or doing various other things.The application of hasee laptop keyboardThere are many good applications for the use of hasee laptop keyboard. The most popular is the Mac Pro and its cousins. In addition to these, there are also several PC apps that you can use to write or type on your laptop. You can use them to work on your computer, work on your cell phone, and even to write in your journal. For some people, using a laptop will be the only way to get their work done.If you are looking for a new laptop then it is very important to have a laptop that is good enough to use. If you are looking for a laptop that is easy to use then it is very important to have a laptop that is good enough to use. If you are looking for a laptop that is easy to use then it is very important to have a laptop that is good enough to use. If you are looking for a laptop that is easy to use then it is very important to have a laptop that is good enough to use.When using your laptop to work, you can also use your laptop to type on hasee laptop keyboard. If you have been using your laptop to type on hasee laptop keyboard, you can use your laptop to type on hasee laptop keyboard. It is important to know that when using your laptop to type on hasee laptop keyboard, you can also use your laptop to type on hasee laptop keyboard. When using your laptop to type on hasee laptop keyboard, you can also use your laptop to type on hasee laptop keyboard.I have been having problems with my laptop lately. I've tried to get it to use the same key as the one that is used by my PC and I've tried to fix it by replacing the key and restarting my computer. The problem is that I cannot get it to do anything other than make a strange sound when I press the F2 key. The key does not seem to change in any way. The problem is that I can't get it to do anything other than make a strange sound when I press the F2 key. I'm really frustrated with this problem.
no data
you might like
no data
Contact Us
Leave a message
We welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
Contact US

    Bao’an District  Shenzhen City, China

     +86 189 3806 5764

NEWSLETTER SUBSCRIBE
no data
Copyright © 2021 CrowBerry

   

chat online
NEED HELP? WE'RE HERE!