6 Metal materials for building and construction materials and elements of metal, namely, metal pipes and metal fittings therefor, metal pipes for liquid and gas transfer, metal pipe couplings and joints, all-purpose metal straps, alloyed iron, angle irons of metal, bar hangers and parts and fittings therefor made of metal for electrical fixtures and housing, bathtub grab bars of metal, beams of metal, binding screws of metal for cables, bolt snaps of metal, bolts of metal, brackets of metal for building, branching pipes of metal, branching tubes of metal for pipelines, building boards of metal, building panels of metal, cable clamps of metal, cable junction sleeves of metal, cable stretchers and cincture stretchers of metal being clamp links, casings of metal, ceiling boards of metal, ceiling supports of metal, cermets, chain block used for lifting and rigging, clad steel plates and sheets, clips of metal for cables and pipes, clips of metal for tubes, collars of metal for fastening pipes, copper pipes, copper panels for circuit boards, couplings of metal for chains, drain pipes made of metal, ducts and pipes of metal for central heating installations, ducts of metal for ventilating and air-conditioning installations, elbows of metal for pipes, fittings of metal for compressed air hoses, fittings of metal for pipes, floor panels of metal, junctions of metal for flexible pipes, junctions of metal for rigid pipes, mechanical fastening elements of metal, metal adapters for use with hydraulic and pneumatic systems, metal bolts, metal bonding fasteners for mounting and demounting of ceiling and wall panels, metal containers for compressed gas or liquid air, metal drains for use in construction of basement waterproofing systems, metal hinges, metal hoses for plumbing use, metal junction sleeves for non-electric cables, metal louvers for guiding light, metal mounting brackets for general use, metal pipe fittings for compressed air pipes, metal profiles for arranging devices on and in walls, ceiling and other surfaces, metal flanges, metal cladding, metal boxes, metal pipe couplings and joints; pipes and pipelines of metal, namely, metal drain pipes; drainage profiles of metal; drains of metal for building drainage; shower drains, being shower floor drains, of metal and grates of metal for shower drains; fittings of metal, in particular for pipelines, drainage pipes, toilets, washbasins, bath tubs and urinals; metal valves not being parts of machines, and metal non-return valves not being parts of machines for water and heating pipes; roof flashing of metal; roof gutters of metal; metal hardware and small items of metal hardware, namely, springs, nuts, washers, pulleys, and valves, not including machine elements, metal junctions for pipes, metal flanges; framework of metal for building, in particular being framework for sanitary and/or heating pipes or for toilet or urinal flushing systems or for parts for sanitary equipment; drainage and gutter pipes; metal grates, namely, drainage gullies and sluices of metal; metal hardware mounting system, namely mounting plates of metal for pipelines, in particular mounting plates of metal for pipelines as part of heating, refrigerating and water supply apparatus as well as for sanitary apparatus and installations; metal grates for floor drains and component parts thereof of metal; metal shower drain traps for shower waste; gutters being rain traps of metal; metal storage tanks, namely rainwater reservoirs of metal