7339| 11
|
把一塊1.2米長5mm厚鋼板折彎成幾字型,有什么簡單經濟的辦法嗎? |
| ||
| ||
| ||
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, 2025-8-6 22:02 , Processed in 0.067369 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.