Machubu olemekezeka amadziwika ndi kulondola kwawo kwapafupi ndi mawonekedwe osalala. Amapangidwa kuchokera pa chitsulo chapamwamba, chomwe chimapangitsa kuti kukwaniritsa zokhumudwitse. Njira iyi siyingoyambitsa mawonekedwe amkati komanso imalimbikitsa mphamvu yamakina a chubu, ndikupangitsa kuti ikhale yolimba komanso yosavuta kwambiri komanso kuvala. Mababu olemekezeka amagwiritsidwa ntchito kwambiri popanga mawotchi a hydraulic, komwe amakhala ngati mbiya ya cylinder, amalola pisitoni kuti isunthire bwino mkati mwawo.
Lembani uthenga wanu pano ndikutumiza kwa ife