Butterfly Valve, Check Valve, Gate Valve manufacturer / supplier in China, offering Wafer/Flange/Lug/Simi-Lug/U/Double Offset/Triple Offset Butterfly Type Industrial Valve, Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve Gate Swing Check Valves, High Quality 150lb Hot Sale Manual Aluminum Handle Industrial Wafer Butterfly Valve and so on.