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标题: 求助 IEC 61156-5:2012 [打印本页]

作者: chankc 时间: 2013-11-25 23:11:21 标题: 求助 IEC 61156-5:2012

IEC 61156-5:2012
Multicore and symmetrical pair/quad cables for digital communications – Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Horizontal floor wiring – Sectional specification

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