楼主: 僵尸号
|
聚氨脂对钢的摩擦系数是多少? |
| ||
| ||
| ||
发表于 2021-11-25 13:34:39
|
显示全部楼层
| ||
发表于 2024-6-29 11:11:25
|
显示全部楼层
| ||
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, 2024-11-23 12:45 , Processed in 0.052232 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.