3073| 4
|
[通信前沿] YD 5076-98 程控电话交换设备安装工程设计规定 |
|
| |
版规|手机版|C114 ( 沪ICP备12002291号-1 )|联系我们 |网站地图
GMT+8, 2025-7-23 13:54 , Processed in 0.147713 second(s), 18 queries , Gzip On.
Copyright © 1999-2025 C114 All Rights Reserved