Ключевые слова: architecture, brown, burner, burning, casting, closeup, control, crucible, dangerous, dirty, dust, energy, environment, equipment, factory, flame, forging, framework, gray, heat, industry, landscape, light, machinery, manufacturing, melting, metal, packing, process, processing, production, red, scene, security, smelting, solid, splash, steel, steel plate, still life, stove, structure, workshop,