7 Metal hardware, namely, metal piston rings, metal seal rings for use with turbomachinery and centrifuges; machine parts, namely, locating keys, locating cones, plungers for siphoning fluids, plungers for absorbing shock, valve springs, spark plugs, stroke end blocks, stop blocks, shim plates, backup plates, multi-purpose high pressure washers, die fixing plates, skid brackets, air header brackets, urethane spring blocks, guide posts, bushings, machine end stops, ball sliders, guide holders, spacers, height and stock blocks, transmission chains other than for land vehicles, chains for conveyors, guide bars, spool retainers, wear plates, slide plates, cam gib plates, cam slide plates, cam guides, cam dwell plates, cam followers, cam stoppers, urethane stoppers, guide rollers, coil supports, blanking dies, punch retainers, die punches, punch strippers, lifters for elevating materials passing through machines, bearings, shafts, arm blocks, lifter arms, shaft arms, bush holders, connecting rods, pushers, pusher spring heads, connector plates, planeveyors in the nature of roller bearings for machines, embossed plates, rubber springs for vibration isolation in industrial machines of all types, cams, roller cams, keeper blocks, machine parts, namely, valves, grease rings, machine housings, guards, hoods, hangers, pulleys, bearings, cranks, shuttles, journals, journal boxes, sharpening wheels, shock absorber plungers, drilling bits, reels and guides; bearings for transmission shafts, being parts of machines; anti-friction bearings for machines; plastic molding and forming machines; metal molding and forming machines; replacement parts for power shovels, road rollers, cranes and conveyors, namely, chassis parts, bearings, guides, springs. non-electric prime movers for opening and closing dam gates, namely, machine parts in the nature of guides and bearings; machines and lines composed thereof for the production of automobile parts and steels; engine bearings for land vehicles, vessels, and aircraft