Ishidi le-galvalume elihlanganiswe ngombala liyimpahla yokwakha eyenziwe ngezinto eziyinhlanganisela yezendlalelo ezintathu, okuhlanganisa i-substrate, i-zinc-aluminium alloy coating kanye ne-organic coating.Ngemva kokukhishwa kwe-surface degreasing, i-phosphating kanye nokwelashwa kukasawoti okuyinkimbinkimbi, igcotshwa nge-organic coating bese ibhakwa.Impahla inokubukeka okuyisicaba futhi okuhle, isisindo esincane, ukumelana nokugqwala, impilo ende, ukusebenza kahle kokumelana nokushisa, okusetshenziselwa kabanzi ekwakheni, ezokuthutha, amandla kagesi, izinto zikagesi zasendlini kanye neminye imikhakha.