IEC61156-5-2012
我这边只有2009版本 已经有2009版了想看看2012版的有什么变化。谢谢你! IEC 61156-5-2012 Multicore and symmetrical pair/quad cables for digital communications – Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1000 MHz – Horizontal floor wiring – Sectional specificationhttp://bbs.infoeach.com/thread-208256-1-1.html
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