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