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ratio of gypsum rock gypsum poder

For dental use the proper waterpowder ratios fractions are as follows For the average mix of plaster 45 to 50 mL100 g 045–050 For the average mix of stone 28 to 30 mL100 g 028–030 For the average mix of improved stone 19 to 24 mL100 g 019–024

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