The coefficient of thermal conductivity is very low, the insulation effect is very good, much higher than the general building materials.

导热的系数非常低，保温效能非常的好，远远高于一般的建筑材料。

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Simply put, the general building materials (such as wood, gypsum board to the metal ceiling) when subjected to high temperature or combustion will spread the fire and heat to other locations.

简单地说，一般建材(如木材、石膏板其至金属天花)当受到高温或燃烧后都会将火和热蔓延至其它位置。

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Sales at the Laiwu Sheng Yuan Building Materials Co. have plunged 50 percent from a year earlier, said general manager Wang Jian.

总经理吴健Wang Jian说，莱芜的胜源建筑材料公司Laiwu Sheng Yuan Building Materials Co .的销售已经从一年以前下降了50%。

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