Ключевые слова: carriage, cathode, clear, closeup, company, control, copper, economy, electricity, equipment, finished, heap, heavy, industrial, ingot, light, liquid, machine, machinery, metal, metallurgy, pile, plant, plate, process, product, production, purification, rail, red, refinery, ribbon, sheet, stack, storage, strip, sulphuric, technology, terracotta, tie, tied, transportation, warehouse, workshop,