7 MACHINES AND MACHINE TOOLS FOR FORGING, MACHINING AND DIE FORGING; METAL ROLLING MILLS AND PARTS THEREFOR, NAMELY, SHELLS, ROLLS, ROLLERS, AND ROLLS AND ROLLERS FOR ROLLING RUBBER, METAL OR PLASTIC FOR GRINDING OR FOR COMPACTING; ELECTRIC AND HYDRAULIC MOTORS FOR MACHINES; AND HYDRAULIC, ELECTRIC AND NUCLEAR TURBINES AND PARTS THEREFOR; METALLIC SHELLS FOR ROLLS, NAMELY, ROLLING MILL ROLLS, CONTINUOUS CASTER ROLLS AND CLUSTER MILL ROLLS; METALLIC ROLLS FOR ROLLING MILLS, CONTINUOUS CASTERS, CLUSTER MILLS AND NARROW STRIP MILLS