Butterfly Valve, Check Valve manufacturer / supplier in China, offering PTFE PFA Lining Stainless Steel Ss CF8 CF8m Disc Wafer Butterfly Valve for Sea Water / Acid/ Base/ Corrosive/ Alkali/ Food/ Drinking Water/ Portable Water, Two Piece Body PFA PTFE Full Lining High Performance Butterfly Valves, Cast Iron Ductile Iron Wafer Style Butterfly Valves ASME B16.10 with Lever/Gear and so on.