19312| 14
|
90度折弯件展开时,先减板厚再加折弯系数,是何道理? |
| ||
| ||
| ||
| ||
| ||
| ||
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, 2024-12-2 12:31 , Processed in 0.051885 second(s), 14 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.