Ключевые слова: bundling, business, characteristics, circular, design, equipment, factory, folded, goods, hardware, heating, heavy industry, hot rolling, industry, light, manufacturing, many, metal, outdoor, oxidation, pattern, play, process, processing, products, raw materials, rolled up, rust, steel, strip steel, stripes, structure, technology, texture, the background, the sky, the workers, together, trade, transport, unmanned, workshop,