Wafer Butterfly Valve, Flange Butterfly Valve, Lt Butterfly Valve manufacturer / supplier in China, offering Big Size Bareshaft with Support Wcb Body and Stainless Steel Disc Triple Offset Butterfly Valve, 380V-50Hz Electric/Gear Box/at Double Effect Pneumatic Operate Lug /Flange Type Triple Eccentric Butterfly Valve, DN40-DN800 Cast Iron Ductile Iron Stainless Steel Dual Plate Check Valve Wafer Check Valve with NBR V-Iton EPDM PTFE Seal and so on.