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