1709| 0
|
NB/T 47013.9-2012 承压设备无损检测 第9部分:声发射检测(同JB/T 4730.9-2012).pdf |
| ||||||||||||
|
||||||||||||
小黑屋|手机版|Archiver|电力建设网站 ( 苏ICP备16030970号-1 )|网站地图
GMT+8, 2024-5-6 12:28 , Processed in 0.210712 second(s), 26 queries .
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.