Ibikoresho bitandukanye byumuringa, nka 95, 53, 56, na 62, bifite ibice bitandukanye byumuringa na zinc, bigira ingaruka kumiterere yumuringa wumuringa, nko kurwanya ruswa, imbaraga, hamwe na mashini.Kurugero, imiringa 95, ni 95% y'umuringa na 5% zinc, ikoreshwa mugukora kanda beca ...
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