Gate Valves, Brass Ball Valves, Check Valves manufacturer / supplier in China, offering Customizable 1/2" - 4" NPT Brass Gate Valve Heavy Duty Female Thread Manual Rotary Sluice Valve for Water Oil Gas Industrial Valve Stop/Check/Gate/Ball Valve, Wholesale DN15 - DN100 UL CE Bsp Valvenpt Thread C83600 600wog Full Port Bronze Ball Valve Industrial Valve 1" 2" 3 4in Water Brass Bronze Gate Stop Check Valve, 3 Piece Ball-Type Full Bore Medical Gas Isolation Ball Valve with Copper K Tube and so on.