Umuyoboro wibyuma ukoreshwa mugutanga amazi nifu yifu, guhanahana ubushyuhe, gukora imashini zikoreshwa nibikoresho, nibikoresho byubukungu.Imiterere yubwubatsi hamwe nicyuma cya truss, inkingi nubufasha bwa mashini, birashobora kugabanya uburemere, kuzigama ibyuma 20 ~ 40%, kandi birashobora kubona imashini ikoreshwa ...
Soma byinshi