7 EQUIPMENT FOR THE METAL, IRON AND STEEL INDUSTRIES-NAMELY, SINTERING UNITS, BLAST FURNACE BELLS AND HOPPERS, CRUCIBLES, CONVERTORS, MIXERS, ROLLING MILLS, FINISHING LINES, DRAGGING MACHINES, COMPACTING MACHINES, CONVEYING MACHINES, CONVEYING MACHINES, SAWING MACHINES, STACKING MACHINES; HANDLING EQUIPMENT-NAMELY, TRANSFER CARS AND DRAWN CARS; COPPER CONVERTERS; WATER TURBINES; PIT-PROPS; DIESEL-MARINE PROPULSION ENGINES; MARINE TURBINES, STEAM TURBINES COMPRESSORS; BOILERS AND PARTS THEREOF FOR ELECTRICITY POWER STATIONS AND INDUSTRIAL INSTALLATIONS, MONOTUBULAR BOILERS, MARINE BOILERS, RECOVERY BOILERS; CONDENSORS AND REHEATERS FOR WATER USED IN ELECTRICITY POWER STATIONS; DESALINIZATION UNITS