Formwork for concrete, of metal; Reinforcing bars of metal for use in concrete; Reinforcing materials of metal for concrete; Deck profiles of metal; Formwork ties of metal; Meshes of common metal; Bars of metal; Bar connectors of metal; Decking of metal; Girders of metal; Interlocking metal flooring; Metal angles; Metal fencing; Metal roofing; Prefabricated metal building structures; Rods of metal; Stoppers of metal; Metal ceilings; Securing devices (fastenings) of metal for building purposes