Ключевые слова: bar, beam, beams, blue, build, ceiling, construction, contractor, crosspiece, estate, exterior, factory, frame, framework, hazardous, heavy, home, house, housebuilding, housing, industrial, industry, investment, iron, jobs, material, metal, project, property, real, red, repair, residence, roof, rooftop, safety, site, sky, steel, steel worker, structural, structure, tether, top, unfinished, walk, work, worker, workplace,