Iron oxide pigments imakhala ndi ntchito zosiyanasiyana.Amagwiritsidwa ntchito pomanga, utoto, inki, mphira, mapulasitiki, zoumba, zinthu zamagalasi.Zili ndi ubwino wotsatira 1.Alkali kukana: Ndiwokhazikika kwambiri pamtundu uliwonse wa alkalis ndi mitundu ina ya zinthu zamchere, ndipo ...
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