Heba Automatic Foam (AFFF) Extinguishers are suitable for both Classes A & B fires. The extinguisher body is constructed from cold rolled steel (CRS), fabricated by automatic inert gas (MIG) welding process. Each extinguisher is subjected to hydrostatic pressure to assure the safety of the end-user. The internal surface of the body is thoroughly coated with a PPA coating powder to ensure both optimal electrical and corrosive resistivity and the external surface is shoot blasted and pretreated with zinc phosphate to improve corrosion resistance and paint adhesion.