The first move: through the address judgment, online promotion will leave contact information, which address is very important, the general address is what building what building several, this kind of general non-factory, if the address why the industrial park several buildings or what development zone, basically can be judged as a factory.
The third trick: Judging by the number of online transactions on B2B platforms, B2B platforms such as Ali platform have a large number of direct network transactions, most of them are traders, and manufacturing factories are common in online drainage and offline transactions.
The welding stuff, it's matte. If you find that the chip you bought is shiny, or the matte material on it can snap down, it may be refurbished. The retread could have been polished, reprinted.3, first of all, the original chip refers to the manufacturer's direct factory chip, that is, we often say "original genuine", including a variety of CPU, graphics card, memory and other hardware equipment chip group.
4, first of all, you can see whether the surface of the electronic component has been polished traces, generally polished components will have fine lines on the surface or the previous manufacturer's trademark. Of course, there are dealersIn order to cover up, the surface of the component is also coated with a thin layer of paint, which looks very bright and basically has no plastic texture.
1, Zhongying Electronics: in the home appliance main control chip, lithium battery management chip and AMOLED display driver chip technology accumulation: AMOLED display driver chip is the only domestic supplier that has achieved mass production; Home appliance chip products are the main suppliers of many domestic first-line brands.
2. Top 10 chip stock leadersZhongying Electronics: It has deep technology accumulation in home appliance main control chip, lithium battery management chip and AMOLED display driver chip: AMOLED display driver chip is the only supplier that has achieved mass production in China; Home appliance chip products are the main suppliers of many domestic first-line brands.
3, photonic chip leading concept stock 1: Beijing Junzheng (300223) Beijing Junzheng has the world's leading embedded CPU technology and low power technology. Aiming at the characteristics of mobile multimedia products, Beijing Junzheng creatively launched its unique 32-bit microprocessor technology XBurst.
4, Shilanwei (600198) : chip concept leading stock. The company has a number of core patented technologies, and participated in the construction of the National Key Laboratory of Wireless mobile Communication and the National Engineering Laboratory of Wireless Network and chip technology of new generation mobile communication. ST Datang (600460) : chip concept leading stock.
5. Zhongying Electronics, a leading stock of listed companies producing automotive chips, has accumulated profound technology in home appliance main control chips, lithium battery management chips and AMOLED display driver chips: AMOLED display driver chips are the only suppliers in China that have achieved mass production; Home appliance coreChip products are the main suppliers of many domestic first-line brands.