标准名称：BS EN 8491-2008 Method for assessment of fire integrity of large diameter power cables for use as components for smoke and heat control systems and certain othe
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更新日期：2011年10月26日
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BS EN 8491-2008 Method for assessment of fire integrity of large diameter power
cables for use as components for smoke and heat control systems and certain
othe
cables for use as components for smoke and heat control systems and certain
othe
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