建筑与建筑群综合布线系统工程设计规范Code for engineering design of generic cablingsystem for building and campusGB/T 50311-2000
工程设计规范
Code for engineering design of generic cabling
system for building and campus
GB/T 50311-2000
建筑与建筑群综合布线系统工程设计规范Code for engineering design of generic cablingsystem for building and campusGB/T 50311-2000
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