Ключевые слова: architect, article, background, beltconveyed, block, building, cement, close, closeup, concrete, construct, construction, engineers, fittings, grey, industry, iron, metal, modern, new, nobody, picture, pile, process, rammed, reinforcement, shade, shades, spots, structure, stub, sun, technology, tile, tube, undone, up, usage, wall, white, works,