GB 50264-2013 第4.2.2条
| **** | The thermal conductivity of cold insulation materials and their products shall not exceed 0.064 W/(m·K) (at a mean temperature of 25℃), and they shall have a closed-cell structure with low water absorption. |
| **** | The thermal conductivity of cold insulation materials and their products shall not exceed 0.064 W/(m·K) (at a mean temperature of 25℃), and they shall have a closed-cell structure with low water absorption. |
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