6 Common metals and their alloys; metal building materials, namely, soffits, fascia, cladding, roof and wall panels, sandwich elements in the nature of anti-noise and sound absorbing panels for roofing, for fences, for floors and doors, sandwich elements, namely, soffits, fascia, cladding, roof and wall panels, made primarily of metal with at least one plastic layer and at least one metal layer or made of two or more metal layers especially for suction dredger tubes, sleekers of plows, wearing plates of roll housings, molding, blades in blade washers, chutes, for use in the sand, grit and cement industry, and for wear-resistant layers in crusher plants; heating systems in the nature of ducts and pipes of metal for central heating and cooling installations, metal heating and cooling ducts; transportable buildings of metal; small items of metal hardware, namely, pulleys, nuts and washers; pipes and tubes of metal; metal fire resistant safes and metal safes; common metal building materials, namely, beams, profiles, particularly, cap profiles, air duct profiles, steel light profiles, U-shaped, C-shaped and angle profiles for use in protection cabins manufacturing industry, safety frames, door frames, formwork, floor frames, roof frames and corner pillars, metal profiles for the construction industry, namely, for bridge safety rails, flat roof insulations, anchor rails, glazings, partitioning and ceiling rails, plant manufacturing and lift construction; metal building materials, namely, fastening profiles, illuminating profiles and profiles for use in the electrical and escalator industries; metal reinforcement materials for building, namely, profiles for use in the structural-facings, window manufacturing, handling engineering, interior construction work, insulation, air-conditioning, and ventilation and solar technology industries, in particular, for air-conditioning cabinets, frames for solar panels, electrical cabinets and perforated and non-perforated locking rails; metal building materials, namely, profiles for use in the storage and conveyor technique, steel and mechanical engineering industries, in particular, for use as vertical members, plate supports, diagonals, support angles, runners, cheek sections and guide rails; metal building materials, namely, profiles for use in the agricultural machinery industry, in particular, for use in constructing rollover protection cabins, towing couplings, chain guides, door frames and storage platform frames; metal reinforcement materials for building, namely, profiles for use in the furniture and shop fitting industries, in particular, for use in constructing office furniture and beds, for use in sanitary engineering, switchboard construction, vessel interior construction work; lockings, namely, metal locks, metal locksets, metal security lock cylinders and keys; metal gates; metal door fittings, in particular, metal door frames, metal tubes for doors and portals with and without sealing grooves or runners; metal garage doors; metal industrial doors; metal awnings; metal doors; metal beverage cans; coated shaped and/or hardened components of metal, included in this class, namely, bolts, casings and cable wires; fence posts made of metal; corn silos made of metal; metal mountings for photovoltaics and solar panels