Chifukwa palibe wosanjikiza oxide pa mkati ndi kunja makoma a mwatsatanetsatane kuwala chitoliro, palibe kutayikira pansi kuthamanga kwambiri, mwatsatanetsatane mkulu, mkulu mapeto, palibe mapindikidwe ozizira kupinda, flaring, flattening ndipo palibe ming'alu, izo makamaka ntchito kupanga mankhwala. za ma pneumatic kapena hydraulic, monga silinda ya mpweya kapena silinda yamafuta, yomwe imatha kukhala chitoliro chopanda msoko kapena chitoliro chowotcherera.