Diaphragm Valve, Compression Fitting, Tube Fitting manufacturer / supplier in China, offering High Pressure Regulator Inlet 3500psi Outlet 0-500psi SS316L for Lab Gas, 3500psi High Purity Methane Pressure Regulator for Solar Photovoltaic Industry, Outlet 0~500psi CO2 PVR Diaphragm Compress Natural Gas Regulator and so on.