Mpira screw lifter wapangidwa ndi screw, nati, mpira wachitsulo, kachidutswa-kukankhira chisanadze, simenti yochulukira makina osinthira, chotolera fumbi, ntchito ya zosefera za mpira ndikusintha mayendedwe ozungulira kukhala mzere wozungulira, chonyamulira mpira chimatchedwa gawo lililonse. kutseka kwa cycle, th...
Werengani zambiri