ZTOPCHEN 发表于 2013-8-8 13:13:14

EIA-568-B.1 Commercial Building Telecommunications Cabling Standard

EIA-568-B.1
Commercial Building Telecommunications Cabling Standard
Part 1: General Requirements



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admin 发表于 2013-8-8 14:55:53

谢谢您的分享，金币已奖励。
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