芯材可采用无机质（玻镁板、石膏板）、岩棉、硅酸铝棉或玻镁棉。

The core can adopts inorganic substance (magnesium, plasterboard), rock wool, aluminum silicate wool or magnesium.

youdao

芯材可采用无机质（玻镁板、石膏板）、岩棉、硅酸铝棉或玻镁棉。

The core can adopts inorganic substance (magnesium, plasterboard), rock wool, aluminum silicate wool or magnesium.

youdao