Gypsum blocks have natural fire resistance property because of the special molecule structure of gypsum.

石膏砌块因其主要原料石膏具有独特的分子结构而具有天然的耐火特性。

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Gypsum blocks have natural fire resistance property because of the special molecule structure of gypsum.

石膏砌块因其主要原料石膏具有独特的分子结构而具有天然的耐火特性。

youdao