Gufunga birambuye birebire bifite uburebure bwa 1.45°, gufunga neza cyane;
2. Agace ko gufunga ntigakora ku muyoboro urimo gukora mu gihe cyo gufunga kugira ngo hirindwe kwangirika no kwangirika kw'ibikoresho
4. Imashini yihuta cyane ikoresha imirongo myinshi, umuvuduko ushobora kugera ku bice 50/umurongo/umunota;
5. Ongeraho imikorere yo kuzuza azote ukurikije ibyo ukeneye, igipimo cya ogisijeni gisigaye kiri munsi ya 3%;