Ключевые слова: apartment, architecture, background, block, blue, building, built, business, city, concrete, construct, construction, covering, design, development, engineering, exterior, frame, framework, high, home, house, housing, industrial, industry, iron, ladder, metal, metallic, new, outdoors, plastic, platform, poles, project, renovation, residential, restoration, risk, safety, scaffold, scaffolding, site, sky, steel, structure, urban, wall, wood, work,