GB/T 19215.5-2023电气安装用电缆槽管系统第2部分:特殊要求第3节:安装在机柜中的带槽电缆线槽系统国家标准
英文:Cable trunking systems and cable ducting systems for electrical installations—Part 2: Particular requirements—Section...
英文:Cable trunking systems and cable ducting systems for electrical installations—Part 2: Particular requirements—Section...