Dị ka mkpa ndị ahịa si dị, dị iche iche nkọwa nke nọmba ibe ebuli n'elu ikpo okwu ụgbọ ala, nọmba ibe ebuli hydraulic nyiwe, nọmba ibe hydraulic ikpo okwu lifts, nọmba ibe ụgbọ-n'ịnyịnya ikuku ọrụ nyiwe nwere ike ahaziri.Nabata ọhụrụ na ochie ahịa na bia kparita uka.