Ключевые слова: background, bright, chamber, closed, closeup, craft, door, factory, fire, foundry, furnace, fused, glass, glowing, heat, hole, hot, industrial, industry, insulation, iron, light, malleable, manufacture, manufacturing, melt, melting, metal, metallurgy, mining, observe, pipe, process, red, rod, rotates, round, screws, steel, wall, window,