Gate Valves, Brass Ball Valves, Check Valves manufacturer / supplier in China, offering 1" 3 Piece 4 Bolt Brass Dual Port Solder 600 Lb. Ball Valve, 2 3 Piece 600wog Copper K-Tube Brass Medical Gas Isolation Shut-off Ball Valve with Extensions Oxygen Cleaned Lockable Line Pipeline Valve Stop/Globe/Check, Three-Piece, Full Port, Oxygen Cleaned Bronze Valves with Extended Copper-Tube Ends and so on.