43744| 50
|
[国家标准] GB 50253-2014 输油管道工程设计规范(附条文说明) |
| ||
|关于我们|网站地图|油气储运网 ( 鲁ICP备11007657号-3 )
GMT+8, 2024-11-9 03:06 , Processed in 0.040464 second(s), 15 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.