Mu myaka ya za 1960 na 1970, nta mashanyarazi akomeye yari afite, kandi tekinoroji yo gusudira ntabwo yari yateye imbere nkuko bimeze ubu.Kubwibyo, ibyuma byinshi byubatswe byahujwe na rivets, bishobora rimwe na rimwe kugaragara iyo ureba firime zishaje.Nibisanzwe.
Aluminium cyangwa ibyuma bikurura ibyuma bikoreshwa mugufunga ibyuma iyo bikoreshejwe nk'imiterere, kandi ntibishobora gukoreshwa muburyo.Kubyerekeranye no kumenya niba ibyuma byubatswe ari ibyuma cyangwa bitaribyo, byibuze abahanga mubyubatswe muri kiriya gihe ntibitaye cyane kubikurura imirongo.
Igihe cyo kohereza: Ukwakira-20-2021