Ngaba i-gypsum plaster ayinamanzi? I-gypsum plaster, ekwabizwa ngokuba yi-plaster yaseParis, sisixhobo sokwakha esisebenza ngeendlela ezahlukeneyo ebesisetyenziswa kangangeenkulungwane kulwakhiwo, ubugcisa, kunye nezinye izinto. Yiminerali ethambileyo yesulfate eyenziwe yicalcium sulfate dihydrate, ethi, xa ixutywe namanzi, ibe lukhuni ...
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