... land and air. Specialized in development and production of copper valves, gas valves, cast steel valves, stainless steel ... to all customers around the world. J9301 Copper Solder Ring Coupling In Pipe Fittings C=5 ... 9/5C+2 CEL(°c) FAH(°F)1.Material: Red Copper2.Specification: 3/8", 1/2", 3/4", ... 3)Steady raw material supply:we own Jintian Copper Bar Company, which guarantees product quality,low cost ...