Gate Valve, Butterfly Valve, Check Valve manufacturer / supplier in China, offering Stainless Steel Swing Check Valve 1" DN40 – SS304/SS316, Flange Type, Zero Leakage, Industrial Use, Hot Sell Wafer Type Triple Eccentric Butterfly Valve Flange Butterfly Valve Hard Seal Butterfly Valve, Lt Stainless Steel Wafer Lug Type Butterfly Valve Lug Triple Eccentric Butterfly Valve and so on.