Gas Cylinder, Gas Tank, Oxygen Cylinder manufacturer / supplier in China, offering ISO 150bar Tped Seamless Steel Industrial and Medical Oxygen Gas Cylinder, ISO Tped 5L Seamless Steel Gas Cylinder Oxygen CO2 Helium Argon Nitrogen N2 No2 Air Gas Bottle Manufacturer, 12L High Pressure Seamless Industrial Gas Bottle/CO2/N2o/ Oxygen Steel Cylinder/Tank and so on.