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[国外标准] UL 1666-2017 Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

wzg196

P:2019-08-06 08:37:53

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UL1666-20170131 Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

UL 1666-2017 Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts.pdf

double-reel spooler - 双盘收线机 （0） 投诉

YPont

P:2019-08-06 11:20:42

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好资料！

wire breaking stop unit - 断线停车装置,断线自动停车装置 （0） 投诉

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