Zida zofewetsa madzi ndi chipangizo chomwe chimachotsa zinthu zowuma monga Calcium ndi Magnesium ions m'madzi kuti madzi azikhala ofewa, kuti athe kugwiritsidwa ntchito bwino pamankhwala, mankhwala, mphamvu yamagetsi, nsalu, petrochemicals, kupanga mapepala ndi zina.Mu gawo ili, Toption Machin ...
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