Amakuru-
Nigute ushobora guhitamo iburyo bumwe bwa Girder Hejuru ya Crane
Uratekereza kugura umukandara umwe hejuru ya crane? Mugihe uguze ikiraro kimwe cyikiraro, ugomba gutekereza kumutekano, kwizerwa, gukora neza nibindi byinshi. Hano haribintu byingenzi ugomba gusuzuma kugirango ugure crane ibereye gusaba. Muririmbe ...Soma byinshi
