Urupapuro rwicyuma
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Isahani
1. Ibyuma byubaka Byakoreshejwe cyane cyane mubikorwa byibyuma, ibiraro, amato nibinyabiziga.2. Ibihe byikirere Kwiyongera kubintu bidasanzwe (P, Cu, C, nibindi) bifite imbaraga zo kurwanya ruswa no kurwanya ruswa yo mu kirere, kandi bikoreshwa mugukora ibikoresho, ibinyabiziga bidasanzwe, ndetse no mubwubatsi.3. Ibyuma bishyushye bidasanzwe Ibyuma bya Carbone, ibyuma bivangwa nicyuma cyibikoresho byububiko rusange bikoreshwa mugukora ibice bitandukanye bya mashini ...
