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[国外标准] BS EN 13501-6-2018 Fire classification of cotruction products and building elements Part 6:Classif

P:2023-10-19 08:52:55

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BS EN 13501-6-2018 Fire classification of construction products and building elements Part 6:Classification using data from reaction to fire tests on power,control and communication cables

lower limiter for bellows - 伸缩软管用下部限幅器(电缆附件的) (0) 投诉

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