This paper describes the testing of flame retardant and fire-resisting cables.

本文介绍了耐火电缆绝缘用的耐火云母带品种及其组成。

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This paper describes the testing of flame retardant and fire-resisting cables.

本文介绍了耐火电缆绝缘用的耐火云母带品种及其组成。

youdao