Icyuma
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304, 306 isahani yicyuma 2B icyapa cyindorerwamo
304 306 ibyuma bidafite ingese bifite imbaraga zo kurwanya okiside, kurwanya ruswa, birashobora gukomeza gukora mubushyuhe bwinshi, bifite ubushyuhe bwiza bwo hejuru.Ahanini ikoreshwa muri peteroli, ibikoresho bya elegitoroniki, imiti, imiti, imyenda, ibiryo, imashini, ubwubatsi, ingufu za kirimbuzi, icyogajuru, igisirikare nizindi nganda.
