7513| 16
|
3mm厚的鋼板折一個R50mm的彎,L1=490mm,L2=25mm,那么展開長是多少呢 |
| ||
| ||
| ||
| ||
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-7-21 13:50 , Processed in 0.087809 second(s), 14 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.