972| 4
|
各位大哥,8的键许用挤压应力是多少Mpa? |
点评
书上有的,你居然还来问
| ||
小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-26 22:34 , Processed in 0.051754 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.