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2017-03-23 08:59:04
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一、冷库保温材料的保温性能： 用于冷库方面的聚氨酯保温材料第一要求便是保温性能，而保温性能的好坏在真正投入使用前是无法用肉眼观察出来的，到了观察出耗电量高低差别时已经为时过晚。该公司通过大量的实验检
