Zhengtong Special Material Factory Hi & New Tech Zone Chengdu(wholly-owned subsidiary: Libre Science and Technology Co, Ltd.) has been founded in 1998. We are a professional factory engaged in Cemented Carbide products design, development and production. Our main products are high quality cemented carbide products, such as drill bit sets (oil & mine), compound substrates, inserts, cutting tools, sectional materials, wear-resistant parts, stretching dies, punching dies, roller collars, die blank products, mining alloys, wood cutting tools, nozzle valves, sealing rings, military industrial series of products, high density non-standard products, large precision sheet metal parts and others. Besides,we also design and manufacture the tungsten jewelry,such as watches,rings,pendants,earrings and so on. Our factory is located in Hi&New tech zone,Chengdu,Sichuan Province and our company owns modernized workshops of 3,000 square meters. We are a technology-oriented factory ,we actively introduce mixing ball mill, image analyzer, and magnetic analyzer, such most advanced production and testing equipment, R&D high-quality precision instrument, deep cemented carbide products". Our company has 20 years of manufacturing experience, many senior carbide engineers and a professional team. We have won a good reputation among customers with good quality, competitive prices and advanced techniques . We are looking forward to cooperating with all clients around the world.