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liuxilin1215 发表于 2015-7-7 21:23:29

IEC 61156-2-2-2001 Multicore and symmetrical pair/quad cables for digital commun

IEC 61156-2-2-2001 Multicore and symmetrical pair/quad cables for digital communications – Part 2-2: Horizontal floor wiring – Capability Approval – Sectional specification

admin 发表于 2015-7-8 15:04:44

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