Ibintu nyamukuru biranga umuyoboro wicyuma 310 utagira umuyonga ni: kurwanya ubushyuhe bwinshi, mubisanzwe bikoreshwa mumashanyarazi hamwe nu miyoboro isohora ibinyabiziga, nibindi bintu ni impuzandengo.
303 umuyoboro wibyuma: Mugushyiramo gake ya sulfure na fosifore, biroroshye gutema no gutunganya kuruta 304. Ibindi bintu bisa na 304 ibyuma bidafite ingese.
302 umuyoboro wibyuma: 302 ibyuma bidafite ingese bikoreshwa cyane mubice byimodoka, indege, ibikoresho byindege zo mu kirere, ninganda zikora imiti. Ibisobanuro ni ibi bikurikira: ubukorikori, ububiko, uburyo bwo kunyerera, ibikoresho byubuvuzi, ibikoresho byamashanyarazi, nibindi. kandi ifite ingese nziza kandi irwanya ruswa.
301 ibyuma bidafite ingese gusudira: guhindagurika neza, gukoreshwa kubicuruzwa byakozwe. Irashobora kandi gukomera byihuse binyuze mu gutunganya imashini kandi ifite gusudira neza. Kwambara birwanya imbaraga numunaniro biruta 304 umuyoboro wibyuma.
Umuyoboro w'icyuma 202: Ni chromium-nikel-manganese austenitike ibyuma bitagira umuyonga bifite imikorere myiza kuruta ibyuma 201.