7 Metalworking machines, namely, shrouding tube manipulators; gears, namely, special gears machines and replacement gear components being machine parts; metal rollers being parts of hot-rolling mills; metal rollers being parts of cold-rolling mills; metal machine parts, namely, reel shafts, gripped jaws, V-ledges, tie rods, tension crosses, drive elements, pressure spindles, coupling heads, articulated spindle heads, drive spindles; metal gear parts being machine parts; toothed wheels of metal being machine parts; metal gear shafts being parts of machines; metal pinion gears being parts of machines; metal toothed spindles being parts of machines; metal toothed couplings being parts of machines; metal bevel wheels being parts of machines; metal gear racks being parts of machines; metal worm wheels being machine parts; metal worm shafts being parts of machines; metal crowned toothed hubs being parts of machines; metal gear sleeves being parts of machines; metal wobblers being parts of machines; metal housings being machine parts; metal rollers being machine parts for hot-rolling mills and cold-rolling mills; metal mandrels being machine parts for hot-rolling mills, cold-rolling mills, and continuous casting installations; metal mandrel segments being component parts of mandrels for use as parts of hot-rolling mills, cold-rolling mills, and continuous casting installations; machine parts in the nature of metal pinion gear parts, namely, pinions, toothed wheels for industrial machines; machine parts, namely, metal mandrel parts