321 Porogaramu idafite ibyuma

321 ibyuma bidafite ingese bikoreshwa mumashini yo mumurima munganda zikora imiti, amakara, na peteroli bisaba kurwanya cyane kwangirika kwimbibi zimbuto, ibice birwanya ubushyuhe kubikoresho byubaka nibice bigoye kuvura ubushyuhe.
1. Umuyoboro wa peteroli wa peteroli
2. Umuyoboro wa moteri
3. Igikonoshwa, icyuma gishyushya, gushyushya ibice
4. Ibice byo gucecekesha moteri ya mazutu
5. Umuvuduko w'amashanyarazi
6. Ikamyo itwara imiti
7. Kwagura hamwe
8. Imiyoboro isudira ya spiral yo gutanura no kumisha