Unwrought and semi-wrought common metals and their alloys; steels and stainless steels; building materials of metal; transportable buildings of metal; metal plates; sheet metal; bands of metal; cables and wires of metal; powdered metals; copper powder; zinc powder.

Treatment of metals and their alloys and mechanical, thermomechanical or chemical transformation of metal properties and characteristics; metal tempering; metal surface finishing; welding; chromium plating; nickel plating; tin plating; galvanization; laminating; armor plating; cutting; polishing; magnetization; plating; swaging; stripping; welding of metals; metal forging, pressing, deburring, machining, rolling and shaping work.