Amashanyarazi avanze yumye nuruvange rwibikoresho bya sima (sima, isazi yisazi, ifu ya slag, nibindi), igiteranyo cyiza cyo mu cyiciro cyiza (umucanga wa quartz, corundum, nibindi, kandi rimwe na rimwe bisaba Granules yoroheje, yagutse perlite, yaguye vermiculite, nibindi. ) hamwe n'ibivanze bivanze kimwe muri propo runaka ...
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