Ibarabara ry’inyundo ry’inyundo ry’inyundo ahanini rigizwe n’ugusambuka -kushobora gutera no gushoka - y’icuma, ibihimba nyamukuru vy’imiti birimwo Fe, C, Mo, Mo, Cr, Ni, V, harimwo na N. Ico gikoresho gikoresha icuma c’ivyuma kiri hasi nk’ikintu, kandi ubushuhe bwo mu cumba bwaco burashaje, umutsi w’umuriro w’umuyagankuba uri hasi cane ufise ubukomezi bwiza, kandi urimwo chromium, molybdenum, vanedium, azote, ibintu bidasanzwe vyo kw’isi, ubushobozi bwo kudashobora kwambara; ihinguriro rikoreshwa ku bijanye n’imibereho y’ibikorwa bitagira ingaruka, ubuzima bwaryo bwo gutanga ubufasha bushobora kwongerwa incuro 2-3 ugereranyije n’icuma ca kera c’agaciro kanini.
Igihimba nyamukuru c’ivyo bikoresho vy’inyundo ni uruzitiro rufise inyundo (izwi kandi ko ari umutwe w’inyundo). Ico gikoresho gifise umugozi nyamukuru, disiki, umugozi w’ipin be n’inyundo. Moteri itwara umuzingi kugira ngo ihindukire ku muvuduko munini mu mwobo wavunitse. Ivyo bikoresho bigaburirwa kuva ku cambu co hejuru, kandi kigajanjagurwa n’igitero, ingaruka, ugukemura n’ugusya kw’inyundo y’inyundo y’imbere. Mu gice co hasi c’uruzitiro, ubunini bw’intete n’isahani y’ugusesa n’ubunini bw’ikintu co gumenagura gisohoka mu gipande c’amabuye, kandi ubunini bw’igiti c’umukaraba bunini kuruta ubunini bw’ico kinogo c’ugusinzira kiguma ku isahani y’ugusinzira kugira ngo bikomeze gukubitwa no gusimburwa n’inyundo, maze amaherezo imashini y’ugusohoka biciye ku gipande c’amabuye. Ibikoresho bishobora gukoreshwa bifise: Igikoresho co gumenagura inyundo, inyundo.
Imisoro ishushe: ingaruka z’inyundo zimenagura, Ubushinwa bugira ico bukoze ku bahinga b’inyundo z’inyundo, abaguzi, uruganda .
