6 Metal boxes; Valves of metal, other than parts of machines; Metal hardware, namely, springs; Cotter pins of metal; Pipe coupling of metal; Flanges of metal; Pulleys of metal, other than for machines; Water-pipe valves of metal; Metal pipes; Metal valves not being parts of machines; Cabinet door catches of metal; Metal handles for cabinets; Bolts of metal; Door hinges of metal; Door panels of metal; Door stops of metal