1. Ndi kupita patsogolo kosalekeza kwaukadaulo, zopangira mphira zakhala zikugwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana.Waya ndi chingwe, mphira chingwe, conveyor lamba, payipi mphira, mpweya ngalande, lamba mphira, ndi mankhwala mphira ntchito pa zamagetsi ndi magetsi makampani ayenera kukwaniritsa lolingana dziko ...
Werengani zambiri