Gate Valves, Brass Ball Valves, Check Valves manufacturer / supplier in China, offering Fast Delivery 1/2"-4" Bsp NPT C83600/Cc491K Female Thread Valvulas De Bronce Bronze 2 Inch 4 Inch Ball Valve, Medical Oxygen Service Ball Valves 4inch DN100 Ball Valve for Gas Line, Nickel Plated Brass Ball Valves, DN 1/4" to DN 2", Female-Female, Pn40 and ISO 228/1 Threaded Ends and so on.