Flange Ball Valve, Trunnion Ball Valve, Butterfly Valve manufacturer / supplier in China, offering High-Quality Fully Welded Ball Valve - Full Bore/Reduced Bore with Handle/Turbine in Ss/CS. Plus Heating Ball Valve and Gas Ball Valve for Optimal Performance., Sale Steel Fully Welded Ball Valves Used for Gas Heat Water, Welded Ball Valveheating Ball Valve Steel Ball Valveindustrial Steel Valve and so on.