Scaffolding and elements of scaffolding of metal; modular scaffolding systems made of steel or aluminum elements comprising metal scaffolding and metal fasteners for scaffolding; suspended constructions of steel or aluminum elements, namely, prefabricated metal platforms comprised of catwalks and floor decks of steel and aluminum; anchoring equipment of metal, namely, anchor tubes; metal lattice girders and stair riggers, guardrails and steps of metal; support towers of metal, namely, scaffold structures to support concrete floors; mobile metal constructions, namely, mobile access and working scaffold towers; metal pipes and tubes; ladders made of metal