BS 7629-1-2008 Electric cables – Specification for 300/500 V fire resistant-电线电缆网

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[国外标准] BS 7629-1-2008 Electric cables – Specification for 300/500 V fire resistant

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P:2025-02-15 16:14:01
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BS 7629-1-2008.pdf

BS 7629-1-2008 Electric cables – Specification for 300/500 V fire resistant.pdf

formula - 公式；配方（0）投诉

wzg196

P:2025-02-15 17:43:05
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twist constant - 捻度常数（0）投诉

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