6 Building materials of metal, namely tubes and profiles; junctions for pipes; junctions for profiles; interior wall partitions; wire fences and fence posts lattices; protective cover and lining elements of metal, namely aluminum sheets, steel sheets, metal foil, barrier grids, aluminum and steel wire screens, folding doors, vertical lift doors, and sliding doors; manifolds for pipes and profiles; collars for fastening pipes; ball joints for profiles and sockets for pipes and profiles; shims for pipes and profiles; joint shims; angle shims; cross shims; metal plates; support legs for metal frames; metal staircases, handrails and scaffold platforms made of metal; metal construction elements for the manufacturing of machine parts, namely construction profiles of aluminum, cover and border profiles, joint plates, joint latches, speciality screws of steel, T-joint and joint plates of aluminum; mounting rails and corresponding fitting materials of metal, namely brackets, flanges, screws, ring screws, nuts, pins, washers, sleeves, clamps, supporting angle pieces, connecting pieces for profiles, fasteners, bolts, anchors, dowels, latches, sockets for profiles, T-slot latches, hinges, locks, door stops, rollers for pallet runouts of conveyor plants; couplings and metal pipe connectors for pressurized air and fluids; cable clamps and cableways; portable metal buildings