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Ikirere Kurwanya Ikirere Cyuzuye Ifu Ifu Yumuriro
Isima. .), amazi.Isima ya Portland, sima ya magnesium chloride na bingo idasanzweibyuma byubaka umuriro birwanya ibikoresho fatizo.Ibikoresho bidahuza bisanzwe bikoreshwa harimo alkali icyuma cya silikatike na fosifeti, nibindi.
