Ключевые слова: blue, brick, brick house, building, building exterior, cement, chemical, chemistry, chimney, clay, clouds, coal, color, color image, construction industry, factory, flame, floor, foundry, gasoline, glowing, heating, horizontal, house, industry, manufacturing, masonry, metal, molten, mortar, no people, pipe, pipeline, pipes, pottery, refinery, roof, roofing, rooftop, shingles, sky, stack, steam, steel, technology, tile, ventilation, working, workshop,