Ibyuma bya Galvanised C ni ubwoko bushya bwibyuma bikozwe mubyuma bikomeye cyane, hanyuma bikonje bikonje kandi bikozwe.Ugereranije nicyuma gishyushye kizunguruka, imbaraga zimwe zirashobora kuzigama 30% yibikoresho.Mugihe cyo kuyikora, ingano yicyuma C ikoreshwa.Icyuma C-Imashini ikora imashini ihita itunganya kandi ikora.
Ugereranije nicyuma gisanzwe cya U, ibyuma bya C bisa neza ntibishobora kubikwa igihe kirekire gusa bidahinduye ibikoresho, ariko kandi bifite imbaraga zo kurwanya ruswa, ariko uburemere bwabyo nabwo buremereye gato ugereranije nicyuma cya C.Ifite kandi igipimo kimwe cya zinc, ubuso bworoshye, gufatana gukomeye, hamwe nukuri kurwego rwo hejuru.Ubuso bwose butwikiriwe na zinc, kandi ibirimo zinc hejuru ni 120-275g /㎡, bishobora kuvugwa ko aribyo birinda cyane.