Mubuzima bwacu bwa buri munsi, tuzakoresha ibicuruzwa byinshi byicyuma.Ibicuruzwa byinshi byicyuma nibikorwa.Urupapuro rwumuringa rwera ni umuringa wumuringa hamwe na nikel nkumuti nyamukuru kandi ntakintu.Ukurikije ibishishwa byumuringa-nikel, inkoni ya cupronickel hamwe nibintu bya gatatu nka zinc, manganese, aluminium, nibindi byongeweho, ...
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