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Shape-U Edge Protect

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The main indicators affecting the performance of insulating materials are as follows:1. Insulation resistance and resistivityResistance is the reciprocal of conductance, and resistivity is the resistance per unit volume. The smaller the conductivity of the material, the greater the resistance. The r


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2022-05

Nanjing Hengfeng packaging Co., Ltd wishes you a happy Dragon Boat Festival Vacation!

Chinese culture has a long history and is broad and profound. Ancient festivals are an important carrier of traditional culture. The formation of ancient festivals contains profound and rich cultural connotation. Ancient festivals attach importance to the belief of ancestors and sacrificial activiti