Industrial Gas Cylinder, Beverage CO2 Cylinder, CO2 Fire Extinguisher manufacturer / supplier in China, offering 5lbs 10lbs 15lbs 20lbs Aluminum CO2 Fire Extinguisher with DOT-3al/UL, ISO PED/Tped 166.7bar/174bar/210bar/216bar 3L 7.5L Seamless Steel Industrial Steel Gas Cylinder, 2.7L 5.3L 8L 10L Beverage/Industrial Gas/CO2/N2o/ Oxygen Steel Cylinder/Tank and so on.