9011| 11
|
落料冲孔和弯曲,先做那一道工序 |
| ||
| ||
| ||
| ||
点评
回答很专业
评分 | ||
| ||
小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-29 03:46 , Processed in 0.054605 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.