--- Imiyoboro ya mashini ni ibice byingenzi mu nganda zitandukanye, cyane cyane mubwubatsi no gushushanya. Izi nyubako za silindrike zikozwe cyane cyane mubyuma nkibyuma, aluminium, cyangwa izindi mpinga, kandi bikoreshwa muburyo butandukanye bwa porogaramu. Gusobanukirwa imiterere n'imikorere ya mashini ni ngombwa kubanyamwuga mubwubatsi no gushushanya