求翻译：mm) 为墙体材料, 采用容重为500 kg是什么意思？

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Luck medicinal preparation joined, introduced the very many uniform distribution bubble in the mortar, after the congealment hardened creates the briquette the factor of porosity to increase, causes the heat preservation mortar briquette the dry bulk specific gravity further to reduce, the thermal c

Mm) for wall materials, the use of bulk density for 500 kg m3 of floating bead insulating

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