We are a specialized manufacturer of carbide products and mechanical seals, established in 1978, are local in NingBo suburb, which is largest tungsten carbide enterprise in Zhejiang province.Depending on tremendous strength, advanced technology and equipments and perfect quality checking measures, we mainly produce various corrosion and wear resistant rings, formed products, tungsten carbide cutters, drawing and punching dies, non-standard and shaped products with corrosion and wear resistance. Especially our sealing rings are most famous.In 2002 , we also established mechanical seal branch, which is specialized in producing various mechanical seals, some cartridge seals and components, such as carbon, silicon carbide, ceramic, rubber and stainless.The best price, timely delivery, perfect quality and excellent service are also provided for our customers at home and abroad. Now we have exported our products to USA, Europe, Australia, Japan and so on.Welcome to send your drawings or samples to us, we are sure we will be your best supplier.