polyurethane foam heat-insulation layer
polyurethane foam heat-insulation layer
聚氨酯泡沫保温层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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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.
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；
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