Ключевые слова: arc, background, blast, bright, burning, business, casting, construction, dangerous, dirty, electric, environment, equipment, factory, fire, flame, foundry, furnace, glowing, heat, heavy, high, hot, industrial, iron, job, light, liquid, manufacture, melting, metal, metallurgical, metallurgy, mill, molten, orange, people, plant, power, process, production, red, smelting, smoke, spark, steel, technology, temperature, working, workshop,