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[国外标准] BS EN 50268-1:2000 Common test methods for cables under fire conditions Measurement of smoke density of cables burning under defined conditions Part 1: Apparatus

zhaogy2006

P:2011-04-28 21:50:07

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BS EN 50268-1:2000 Common test methods for cables under fire conditions D Measurement of smoke density of cables burning under defined conditions Part 1: Apparatus.pdf

BS EN 50268-1:2000 Common test methods for cables under fire conditions Measurement of smoke density of cables burning under defined conditions Part 1: Apparatus.pdf

welding wire - 焊丝,焊条 （0） 投诉

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