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Structural steel sections and merchant bars are intended for bolted, welded or otherwise connected constructions of buildings, bridges and other structures, as well as in composite steel and concrete structures. For example:  Single-storey buildings (industrial and storage halls, etc.)  Multi-storey buildings (offices, residential, shops, car parks, high rise, etc.)  Bridges (railway, road, pedestrian, etc.)  Other structures (pylons, power plants, stadiums, convention centers, airports, stations, etc.)