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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Using insulation layer of ultramicropore high-density polyurethane foam, loss of cooling capacity is reduced to ensure better insulating effect and to achieve energy saving.

采用超微孔高密度聚胺酯发泡保温层，减少冷量流失，保温效果佳，实现节能降耗。

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