Iyi mashini ikoreshwa mubyuma kandi bitari ibyuma (harimo ibikoresho bikomatanyije) birakaze, kwikuramo, kunama, kogosha, gutobora, gutanyagura, umutwaro, kuruhuka, gusubiranamo nibindi bintu byubushakashatsi bwakozwe bwisesengura ryimikorere, birashobora guhita bibona REH, Rel, RP0 .2, FM, RT0.5, RT0.6, RT0.65, RT0.7, RM, E nibindi bipimo byikizamini.Ukurikije GB, ISO, DIN, ASTM, JIS nibindi bipimo byimbere mu gihugu no mumahanga mugupima no gutanga amakuru.