Ana yin bututun ƙarfe na galvanized ta hanyar ƙara shingen ƙarfe na galvanized a saman ƙarfe, don haka kayan da ke cikin bututun ƙarfe an yi shi da ƙarfe.Yayin da ake sarrafa saman wannan bututu tare da galvanization, yana hana ƙarfe daga lalacewa, tsatsa, da sauran abubuwan mamaki, kuma a lokaci guda yana taimakawa wajen tsawaita lokacin amfani da karfe.