Ball Valves, Gate Valves, Globe Valves manufacturer / supplier in China, offering J-Valves High Performance 2*0.5 Duplex Stainless Stee F316 Flange & Thread Zero Leakage Guarantee Dbb Ball Valve, J-Valves API 6D Forged A105 Trunnion Pn100 (ANSI Class 600) High Pressure Oil & Gas Fire Safe & Zero Leakage Ball Valve, J-Valves High Pressure 3× 2" Class 600 Duplex Stainless Steel API 6D for Natural Gas Flange/Thread Zero Leakage Dbb Ball Valve and so on.