GB/T 18015.7-2017数字通信用对绞或星绞多芯对称电缆第7部分:具有1200MHz及以下传输特性的对绞或星绞对称电缆数字及模拟通信电缆分规范国家标准
英文:Multicore and symmetrical pair/quad cables for digital communications—Part 7: Symmetrical pair/quad cables with trans...
英文:Multicore and symmetrical pair/quad cables for digital communications—Part 7: Symmetrical pair/quad cables with trans...