treatment of metal goods, namely gears, gear shafts, industrial knives, extrusion dies, wire dies, machine cutting tools, saw blades, engine parts, molds, polished rods and lines, pump parts, compressor parts, bearings, threads, mower blades, gun and rifle barrels and actions, intensifier barrels and plungers, paper and printing rolls, gear cutters, slide trays, mixer paddles, tire molds, locksets, chain saw parts, tool punches, over chrome plating, mandrels and shafts, metallic platings, pulverizing hammers, feed mill metal parts, agriculture harvesting blades, cotton picker spindles, cotton gin metal parts, turbine blades and bearings, screw conveyor metal components and rollers, earth-engaging tools, metal chemical and food processing equipment, industrial tubing, metal hydraulic and pneumatic parts, pipe and valve components, rolling and stamping dies, push-pull cable controls, metal chemical basket parts, metal cooking utensils and oven components, needles, ice skating blades, extrusion screws, metal industrial rolls, fluid nozzles and industrial chain components