31279| 47
|
螺纹真的只有前几牙才受力吗? |
| ||
| ||
| ||
| ||
| ||
点评
靠近被紧固零件那边----为什么呢?
| ||
点评
是啊,从哪头说
| ||
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, 2024-11-12 09:48 , Processed in 0.059971 second(s), 21 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.