Our factory is a state-owned professional manufacturer of rubber seal ring for coal mineral equipment and other equipment, as well as valves for many purposes, which has obtained the certification of ISO9000-20001 quality system. Our products are: 1. O seal ring, Y seal ring, valve gasket, dust-proof ring, etc. 2. Butterfly valve, Check valve, gate valve, Y-strainer We can manufacture the products according to the customer&＃039;s requirements and samples. As a state-owned factory with a long history, we always sincerely provide good products and service to our clients. Our products have been exported to many countries. So we have many long-term business partners.