Longkey Electronics Company established in the fall of 1985, as a large specialized enterprise in the field of PTC thermistor and PTC component and a fully equipped inspection and measurement system of product quality. Longkey can produce 80 million pieces of PTC thermistors with different specifications .Longkey Electronics Company highly pursues modernization of enterprise management. And it uses MRPII computer to manage. It has got ISO-9002 quality-trusted system attestation, PTC components products got safe quality attestation at domestic and abroad &＃65288;national Greatwall attestation, abroad UL, CUL,TUV attestation&＃65289;. ?quality first, reputation highest? is the management rule that longkey follows from the beginning to the end. Our products sell well all over the country, and export to foreign markets such as Southeast asia&＃12289;Europe&＃12289;America&＃12289;Africa etc. about ten country and area. We provide high quality products to the customers in every field with excellent service. Now for more details, please contact us.