Mu myaka ya za 1960 na 1970, nta migozi ikomeye cyane yari ihari, kandi ikoranabuhanga ryo gusudira ntiryari ryateye imbere nkuko riri ubu. Kubwibyo, inyubako nyinshi z'ibyuma zahuzwaga na rivets, rimwe na rimwe zishobora kugaragara iyo ureba filime za kera. Ni nk'iya kera cyane.
Ibyuma bikurura bya aluminiyumu cyangwa ibyuma bikoreshwa mu gufunga icyuma iyo bikoreshejwe nk'inyubako ifunze, kandi ntibishobora gukoreshwa mu nyubako. Ku bijyanye no kumenya niba inyubako ifunze ari icyuma cyangwa atari cyo, nibura abahanga mu by'ubwubatsi icyo gihe ntibitaye cyane ku nyubako zikurura.
Igihe cyo kohereza: Ukwakira-20-2021