Kuberako icyuma gishyushye gishyizwe hamwe kitagira icyuma gishyushye gishyushye, ubwinshi bwa galvanised ni bwinshi. Impuzandengo yuburebure bwikigero cya galvanise irenze microne zirenga 65, kandi irwanya ruswa iratandukanye cyane niy'umuyoboro ushyushye.