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The production process of building gypsum
From the natural dihydrate gypsum or chemical gypsum after a certain temperature heating calcination, the dehydration gypsum dehydration decomposition, to be semi-hydrated gypsum as the main component of the produc…
2016-12-29
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> Gypsum sector experts Zhao Yunlong Division I visit the Secretary for guidance
2016-03-17
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