Application of coatings to metal parts for others

Metal fasteners, namely, nails, bolts, screws, rivets, anchor bolts, washers, nuts, springs, clips and clamps, pins, cotter pins, coiled spring pins, slotted spring pins, studs, pipes, and pipe fittings, all made of ferrous metals, including low and medium carbon steel, alloy steel, atmospheric corrosion-resistant steel, and steel that has been heat-treated, quenched and tempered, for assembly of machines, small or large appliances, farm and garden equipment, furniture, toys, pipes, electrica...