Mining, Metal surface treatment plant and equipment, Machinery and equipment for metalworking, Metals, Machinery & Engineering, Furnaces, electroplating bath, Furnaces, smelting, for lead and anti-friction metals, Furnaces, continuous, metal heat treatment, Furnaces for brazing, welding and sintering, Furnaces, continuous, for heat treatment of metal sheets or plates, Furnaces, smelting and refining, for non-ferrous metals