Company is specialized in knife gate valve???-type ball valve???oggle valve???utterfly valve???-type valve???ull-welded ball valve???emi-ball valve???ate headstock gear etc. over 90 series and 2800 specifications and types. They are widely used in automation control system of paper making???hemical fiber???etrochemical???oodstuff???etallurgy???lectric power???petrochemical???ewage treatment and etc. Non-friction metal seal knife gate valve which are identified as the international advanced level, and obtain twenty national patens???ew national key product and national torch project has exceeded the leakage standard of American MSS-SP???1 in pressure testing. Now , control valves have been widely used in large paper-marking industry both at home and abroad and exported to USA???Australia???ndonesia???pain???aiwan???taly and etc. Products are executed standard of GB???PI???ISI???JIS???IN???besides , company owns certificates of ISO:2000 ???PI???E???S.