Cast Iron Valve, Cast Steel Valve, Ball Valve manufacturer / supplier in China, offering DIN3352 F4 4 Inch DN100 Hard Seat Rising Stem OS&Y Wcb Carbon Steel Gate Valve Pn16-Pn100, Pn40 Oil Pipeline Valves Carbon Steel Gate Valves 2-12inch Manufacture, Gate Valve DN50-400 600 Lbs Forged A105 Bolted Bonnet Raising Stem Raised Face Standard ASME B16.10 Flange Price and so on.