Ключевые слова: architectural, architecture, background, beam, below, built, ceiling, channel, concept, construction, design, development, estate, exterior, factory, factory roof, frame, framework, girder, high, home, housing, indoors, industrial, industry, inside, interior, iron, large, light, line, metal, metal roofing, metal sheet, metallic, modular, panel, perspective, plant, prefabricated, roof, roof beam, roofing, space, steel, steel roof, store, structure, strut, support, technology, under,