Raw zvinhu uye kuumbwa kwemakemikari Bhodhoro regirazi mabheti anowanzo sanganisira 7-12 marudzi ezvigadzirwa.Iko kune kunyanya jecha requartz, soda ash, limestone, dolomite, feldspar, borax, lead uye barium compounds.Uye zvakare, kune zvekubatsira zvinhu zvakaita sekujekesa, colorants, decolora ...
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