Gukoresha ibyumani ubwoko bwibyuma bivanze nibintu byinshi nka molybdenum, manganese, nikel, chromium, vanadium, silicon, na boron.Ibi bintu bivanga byongeweho kugirango byongere imbaraga, gukomera, no kwambara birwanya.Amavuta avanze akoreshwa mubisanzwe Imashini ya CNCibice bitewe n'imbaraga zayo n'ubukomere.Ibice byimashini isanzwe ikozwe mubyuma birimoibikoresho, ibiti,imigozi, Bolts,indanga, ibyuma, ibihuru, flanges, amasoko, naKwizirika. ”