7 Machines for the metallurgical industry, namely, drilling machines for metalworking, grinding machines for metalworking, milling machines for metal working, cold and hot mills, plate and sheet mills, blooming, slabbing and billet mills, universal mills, planetary mills, multi-purpose cold mills, rod, bar and tube mills, continuous mills, reversing mills, pilgrim mills, detaching mills, and replacement parts therefor, namely, rollers, bearings, gears; machines for the steel making industry, namely, tubing machines for metalworking, machines for filling and emptying blast furnaces, machines for tilting, pivoting, and moving converters and ladles, metal coil handlers, metal coil winders, metal coil packagers, metal coil stackers, and cranes, hoists and clamps being parts thereof; continuous casting machines; machines for rolling metals, namely, rolling mills for metalworking, rolling mills for wire, steel rod rolling mills, bloom rolling mills, rail rolling mills, section rolling mills, machines utilizing rotational motion for high energy surface finishing and material treatment, namely, heavy, medium and light section rolling mills, mills for the rolling of steel, aluminum, iron and copper or for the rolling of alloys of the same, and replacement parts therefor, namely, rollers, bearings, gears, roller tables, tilters, scale washers, and roller cleaning machines; machines for processing metal strips, namely, strip and wide strip mills; forging machines; metal presses, namely, forging presses, piercing presses, counter blow hammers, metal extrusion presses, and parts for the aforesaid machines, namely, roll mill bearings, bearing housings for machines