Powder fire extinguishers ABC with presure gauge and wall fixing

Meaning of extinguishers used in Europe:A - for fire extinguishing of solid bodies, which cause fire but also burn, for example: wood, paper, rubber,B - for fire extinguishing of liquids and solids, which are burnt by melting for example: petrol, polyethylene, pitch,C - for fire extinguishing of flammable gases for example: methane, acetylene, propane.