Igikoresho cy'icyuma cya galvanized(Ifite Zinc-coated) aho urupapuro rw'icyuma rwinjizwa mu bwogero bwa zinc bushongeshejwe ku buryo ubuso bufatana n'urupapuro rwa zinc. Kuri ubu, uburyo bw'ingenzi bwo gukora zinc bukomeza, ni ukuvuga urupapuro rw'icyuma ruzunguruka rukomeza kwinjizwa mu bwogero bwa zinc bushongeshejwe bukozwe mu rupapuro rwa galvanized; urupapuro rw'icyuma rwa galvanized. Ubu bwoko bw'icyuma bukorwa hakoreshejwe uburyo bwo gushyushya, ariko nyuma y'aho umwobo ushyitse, ugahita ushyuha kugeza ku bushyuhe bwa dogere 500 ℃, bituma habaho membrane ya zinc na alloy y'icyuma. Iyi coil ya galvanized ifite ubushobozi bwo gutwikira no gusudira neza.