PLANTS FOR THERMAL TREATMENT OF IRON ORES, COMPRISING MELTING FURNACES, HEATERS, BURNERS NAMELY, PLASMAGENERATORS, CONVERTERS, COOLING ELEMENTS, REACTORS,MIXING VESSELS, MIXING CHAMBERS, BURNING CHAMBERS

INSTALLATIONS FOR LIGHTING, HEATING, STEAM GENERATING, COOKING, REFRIG ERATING, DRYING, VENTILATING, WATER SUPPLY AND SANITARY PURPOSES, INCL UDINGPLANTS FOR THERMAL TREATMENT OR ORES, MELTING FURNACES, HEATING DEVICES, BURNERS, INCLUDING PLASMAGENERATORS, CONVERTERS, COOLING ELEM ENTS, REACTORS,MIXING VESSELS, MIXING CHAMBERS, BURNINGCHAMBERS

Pig Iron, Copper Metal, Lead Metal, Zinc Metal, and Chromium