Wafer Butterfly Valve, Flanged Butterfly Valve, Lug Type Butterfly Valve manufacturer / supplier in China, offering Wafer Type Butterfly Valve (D71X-125LB), Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Butterfly Valve, OEM ODM PTFE PFA Coaed Disc CF8 CF8m SS304 SS316 Wcb Bronze API ANSI DIN JIS BS Standard Control Butterfly Valve and so on.