Gas Cylinder, Gas Tank, Oxygen Cylinder manufacturer / supplier in China, offering 46.7L 150bar5.4mm High Pressure Vessel Seamless Steel Argongas Cylinder, 47L 200bar 5.2mm High Pressure Vessel Seamless Steel Argon Gas Cylinder, 47L 150bar 5.4mm High Pressure Vessel Seamless Steel Argon Gas Cylinder and so on.