Ключевые слова: apartment, architecture, background, blue, build, buildings, built, business, close, closeup, column, concrete, construction, corporate, corrosion, corrosionprotection, crane, engineer, engineering, estate, frame, framework, german, germany, high, home, house, housing, industrial, industry, living, modern, new, project, property, real, red, scaffold, scaffolding, site, sky, steel, steelwork, structure, technology, transportation, unfinished, urban, work,