结构致密，吸水率低，不变形，使用寿命长。
Compact structure, low water absorption, no deformation, long life.
石材墙面的隔音效果好、吸水率低，耐酸，不易风化，装饰性强，尤其适合做电视背景墙。
Stone wall has good sound insulation effect, low water absorption, acid resistance, not easily weathered, decorative strong, especially suitable for the television background wall.
测试结果表明，聚氨酯泡沫保温层具有重量轻、强度高、吸水率低、保温效果好、离火自熄等特点；
It is showed in the test result that polyurethane foam heat-insulation layer has advantages such as weight light, strength high, absorbing water rate low and high heat -insulation effect and so on.
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