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[国外标准] UL 1666-2011 Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

wzg196

P:2019-07-19 12:25:59

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UL1666-2011 Standard Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts

UL 1666-2011 Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts.pdf

cladding - 镀层；垫层；金属包层法(一种铜包钢线制造方法) （0） 投诉

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