Na plaster ea gypsum e thibela metsi? Gypsum plaster, eo hape e tsejoang e le plaster ea Paris, ke thepa ea kaho e nang le mekhoa e mengata e fapaneng e 'nileng ea sebelisoa ka lilemo tse makholo ho haha, ho etsa litšoantšo le lintho tse ling. Ke diminerale e bonolo ea sulfate e entsoeng ka calcium sulfate dihydrate, eo, ha e kopantsoe le metsi, e thatafatsa ...
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