... ,:2kg, 3kg, 5kg , wheel Co2 fire extinguisher:10kg, 24kg. flexible operation high efficiency Portable CO2 (carbon steel) fire extinguisher,specification: ... 2KG,3KG, ,5KGWheel CO2 (carbon steel) fire extinguisher,specification: ... choice.7) Cient design and label are acceptable. CO2 fire extinguisher