... Have rich experience and strong ability to develop new products.C=5/9(F-32) F=9/5C+2 ... with convenient transportation by water, land and air. Specialized in development and production of Copper Valves, Gas Valves, Gate Valves, Ball Valve, Radiator Valve ... , Stop Valve, Check Valve, Bibcock, Angle Valves, Brass Fitting, Copper Fitting, ...