Ключевые слова: background, burn, burner, business, casting, closeup, color, conveyor, danger, equipment, factory, fire, foundry, fuel, furnace, generating, heat, heavy, hot, industrial, industry, intensive, iron, machine, manufacturing, melting, metal, metallurgy, mill, molten, orange, plant, pollution, power, process, production, red, roller, rolling, smoke, spark, steel, stove, technical, technology, temperature, workshop, yellow,