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screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel
viti, bulloni, dadi, tirafondi, ganci a vite, ribadini, copiglie, pernotti, chiavette, rondelle (comprese le rondelle destinate a funzionare da molla) ed articoli simili, di ghisa, ferro o acciaio