China, API 600, Gate Valve, Bolt Bonnet, Manufacture, Factory, Price, Flexible, Solid Wedge, Gate Valve, Bolt Bonnet, Flanged, RF, RTJ, trim 1, trim 8, trim 5, Metal, seat, full bore, Rising stem, Non Rising Stem, OS&Y, valves materials have carbon steel, stainless steel, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, A105(N), F304(L), F316(L), F11, F22, F51, F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy, Aluminum Bronze and other special alloy. Pressure from Class 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB