6 Metallic articles for anchoring, fastening and fixing carpets, floor coverings and stairs, namely, metal carpet tacks, metal expansion joints for floors, and aluminum tape used to join panels for use in flooring applications in the building industry; devices made wholly and simply of common metal for anchoring and edging floor coverings, namely, metal carpet tacks; nails, metal staples for construction or industrial use and metal carpet tacks, all metal for floor coverings; metal stair treads for steps of metal; metal floor boards; flooring of metal