Butterfly Valve, Check Valve manufacturer / supplier in China, offering PTFE Coating Flanged Butterfly Valve, Stainless Steel CF8/CF8m SS316 SS304 PTFE PFA Lug Type Butterfly Valve, Ci Di 2205 2507 CF8m CF8 SS304 SS316 Duplex Stainless Steel Full Lug Type Butterfly Valve and so on.