84| 0
|
GB/T 18329.4-2021 滑动轴承 多层金属滑动轴承 第4部分: 合金厚度≥0.3mm的结合质量超声穿透无损检测 |
| ||
Archiver|手机版|小黑屋|标准网 ( 浙ICP备19005909号 )
GMT+8, 2024-5-19 00:53 , Processed in 0.064176 second(s), 33 queries .
Powered by Discuz! X3.4
© 2001-2023 Discuz! Team.