Ball Valves, Gate Valves, Globe Valves manufacturer / supplier in China, offering J-Valve API 6D Class 600 F53 Super Duplex Steel 1/2"Full Port 2PC Design Anti-Corrosion Ball Valve, J-Valves Nace Mr0175 Inconel 825 Class 300 Full Port API 6D Alloy Steel Ball Valve, J-Valves Forged Steel F304/F316/A105 3PC Sw/Bw/Nptf 800/1500lb Floating Ball Valve and so on.