Wafer Butterfly Valve, Flange Butterfly Valve, Lt Butterfly Valve manufacturer / supplier in China, offering Ggg40/50/CF8/CF8m/CF3m Materials Pn10/16 Pressure Wafer Check Valve, Wafer Type/Flange Type ISO5211 Ductile Iron/Stainless Steel Body PTFE Lined Butterfly Valve, Mech Pn10/16/25 Gate Valve Cast Iron Gate Valves Certified Potable Water & Wastewater and so on.