... Brass gate valves,forged brass gate valve,gate valve,Brass valves, Female thread to ISO288/1, BSP, NPT, etc, 100% Leakage Test Brass gate valves,forged brass ... gate valve,gate valve,Brass valves,1,Gate valve Body BRASS: CW614N, CuZn39Pb3, CW617N ... brass C3771, C37000, CW614N, CW617N, etc.2. The valve is used for connecting or cutting off the medium ...