Oxygen Valve, Gas Valve, Brass Valve manufacturer / supplier in China, offering Qf-6acga Brass Galvanized Chrome Valve High Pressure Medical Oxygen Valve, Gas Tank with ISO9809-3 Standard 5.4mm Thickness Gas Bottle TUV Tped Test, 47L Gas Tank with Valve and Cap 6.0mm Thickness 150bar ISO9809-3 Standard and so on.