Nubwoko bwibyuma birebire byizengurutse, bikoreshwa cyane muri peteroli, imiti, ubuvuzi, ibiryo, inganda zoroheje, ibikoresho bya mashini nindi miyoboro itwara inganda ninganda zubaka.Mubyongeyeho, mukunama, imbaraga za torsional nimwe, uburemere bworoshye, bityo rero ikoreshwa cyane mugukora ibice byubukanishi nubwubatsi.