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