16551| 15
|
[通信标准] YD/T 5149-2007 SDH本地网光缆传输工程验收规范 |
![]() |
| |||||||||||||||||||||
版规|手机版|C114 ( 沪ICP备12002291号-1 )|联系我们 |网站地图
GMT+8, 2025-8-18 02:55 , Processed in 0.184928 second(s), 23 queries , Gzip On.
Copyright © 1999-2025 C114 All Rights Reserved