7 Rolling mills, namely, heavy, medium and light section mills, cold and hot mills, strip and wide strip 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 mills for the rolling of metals, namely, steel, iron, aluminum and copper as well as alloys of the same, and replacement parts for the aforementioned rolling mills; industrial machine presses, namely, extrusion presses, impact extrusion, cold extrusion and back-flow extrusion presses, straightening and bending presses, plate shaping presses, deep-drawing presses, multi-stage presses, and replacement parts for the aforementioned industrial machine presses; forging machines, namely, open-die forging machines, automatic forging hydraulic hammers, forging presses, piercing presses and counter blow hydraulic hammers, and replacement parts of the aforementioned forging machines; casting machines, namely, continuous steel slab casting machines and machines for the continuous casting of metals, and replacement parts therefor; plastic extrusion moulding machines and plastic injection moulding machines, pumps for cooling, lubricating and removing waste water in rolling, pressing, forging and casting installations; valves being parts of rolling, pressing, forging and casting machines; couplings for rolling, pressing, forging and casting machines; filters for rolling, pressing, forging and casting machines; electricity generators for rolling, pressing, forging and casting machines; hydraulic driving machines in the nature of hammer drivers for rolling, pressing, forging and casting installations; electric driving machines in the nature of hammer drivers for rolling, pressing, forging and casting installations; hydraulic and mechanical transmissions for machines and replacement parts therefor; supporting chain conveyors and hoists, roller conveyors, and steam cleaning machines for use on industrial rollers; casting machines; conveyors for the conveying of rolled, pressed, forged and cast articles to and from rolling, pressing, forging and casting installations; gas-operated welding machines, flame cutting machines; electric motors for machines; electric gear motors for machines not for land vehicles; washing brushing machines for metalworking with washing filters used to prevent clogging; scarfing-cutting machines and flame cutting machines for metalworking