Diaphragm Valve, Compression Fitting, Tube Fitting manufacturer / supplier in China, offering Gas 3500psi Outlet0-250 Hastelloy Toxic Poisonous Outlet 0-150 Pressure Regulator, 600psi Stainless Steel Acetylene Air Chemical Industry Butane Single Stage Pressure Regulator, Stainless Steel Chemical Industry Oil and Gas Argon Ammonia Pressure Regulator and so on.