Flange Ball Valve, Trunnion Ball Valve, Butterfly Valve manufacturer / supplier in China, offering Butterfly Valve Wafer Type Ductile Iron Disc and Body and EPDM Seal, EPDM FPM Seal Wafer Type SS304 SS316 Body Butterfly Valve with Soft Seal, Stainless Disc PTFE, Handle Wheel Drive Type Wafer Type Butterfly Valve with Soft Seal, Stainless Disc PTFE and so on.