3629| 10
|
机工版设计手册螺钉紧固件中的花形螺钉前为什么加上内六角三个字?? |
| ||
| ||
| ||
| ||
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, 2024-11-11 22:39 , Processed in 0.058661 second(s), 18 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.