Ishusho ya 45 y'icyuma gikonje ikoze mu cyuma gikonjesha, ikozwe mu buryo butari bwo, nta gukata

1.Icyuma gito cya karuboni: Ingano ya karuboni kuva kuri 0.10% kugeza kuri 0.30% Icyuma gito cya karuboni biroroshye kwakira uburyo butandukanye bwo gutunganya nko gucura, gusudira no gukata, akenshi bikoreshwa mu gukora iminyururu, amariveti, bolti, imigozi, nibindi.
2.Ibyuma byinshi bya karuboni: Bikunze kwitwa icyuma cy'ibikoresho, ingano ya karuboni kuva kuri 0.60% kugeza 1.70%, bishobora gukomera no koroshywa. Inyundo n'udupira tw'ibyuma bikozwe mu cyuma gifite ingano ya karuboni kuva kuri 0.75%; Ibikoresho byo gukata nk'imashini zo gucukura, amarobine n'ibikoresho byo gucukura bikozwe mu cyuma gifite ingano ya karuboni kuva kuri 0.90% kugeza 1.00%.
3.Icyuma giciriritse cya karuboni: Mu rwego rw'imbaraga ziciriritse mu mikoreshereze itandukanye, icyuma giciriritse cya karuboni ni cyo gikoreshwa cyane, usibye ibikoresho by'ubwubatsi, ariko kandi ni n'ibice byinshi bya mekanike.