4.Yingyee afite injeniyeri inararibonye azi guhangana nogushiraho nibindi bibazo.
Umusaruro wikora wa Gariyamoshi ya DIN, koresha umurongo wa galvanis kugirango utange umusaruro.
Imashini imwe irashobora gukora ubunini butandukanye bwibiti, kubika umwanya, kuzigama umukozi, kuzigama amafaranga, byikora byuzuye.
Eva eva yerekana ubwoko bwimiterere yinyubako mukubaka inzu yagenewe