Home / Standards / GB/T 21204.1-2007 GB/T 21204.1-2007 Active Multicore and symmetrical pair/quad cables for digitai communications to be used in harsh environments-Part 1:Generic specifications 用于严酷环境的数字通信用对绞或星绞多芯对称电缆 第1部分:总规范 Standard Type GBT ICS 29.060.20 CCS K13 Status 现行 Issue Date 2007-12-03 Implementation 2008-05-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A