![]() |
不管螺帽扭多緊,A物體老是會松動 |
點評
結構定死了就用雙螺母。內窄外寬
| ||
| ||
| ||
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, 2025-7-3 17:50 , Processed in 0.392860 second(s), 25 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.