Ключевые слова: alloy, architecture, assembling, brick, build, builder, business, concrete, construction, crane, developing, development, elevator, empty, engineering, equipment, facade, frame, guard, handrail, high, house, housing, industrial, industry, job, ladder, layer, making, metal, nobody, outdoors, professional, project, safety, scaffold, scaffolding, site, sky, steel, structure, tower, wood, work, worker,