... , etc, 100% Leakage Test Brass gate valves,forged brass gate valve,gate valve,Brass valves,1,Gate valve Body BRASS: CW614N, CuZn39Pb3, CW617N ... labor-saving operation, and unconstrained flow direction. 3. The wheel is made of HT200 gray cast iron...4. female thread ... Specialized in development and production of Copper Valves, Gas Valves, Gate Valves, Ball Valve, Radiator Valve, Stop Valve, Check Valve ...