chankc 发表于 2013-11-17 22:21:05

求助 IEC 60794-3-12:2012

IEC 60794-3-12:2012
Optical fibre cables – Part 3-12: Outdoor cables – Detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling

sigh007 发表于 2013-11-17 22:21:06

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