|
7227| 2
|
[国家标准] 油气长输管道工程施工及验收规范GB50369-2006 |
| ||
|关于我们|网站地图|油气储运网
( 鲁ICP备11007657号-3 )
GMT+8, 2024-12-22 13:20 , Processed in 0.029095 second(s), 14 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.
发表于 2012-4-27 21:33:52
