1288| 0
|
GB/T 21470-2008 锤上钢质自由锻件机械加工余量与公差 盘、柱、环、筒类 |
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, 2024-5-8 10:19 , Processed in 0.205794 second(s), 26 queries .
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.