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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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