Automatic fire extinguishers. Simple structure, flexible operation, convenient application. Feature:1) Simple structure, flexible operation, convenient application.2) Fast ... flammable liquids, solid organics, gas and electric equipment.4) Ideal equipment for use in factories, offices, schools, hotels ... 5 - 12kgB) CO2: 2kg, 3kg, 5kg, 7kgC) Automatic type: 4kg, 6kg, 8kg, 12kg,D) Trolley fire ...