1738| 7
|
什么設(shè)備可以把金屬環(huán)均勻的壓縮?使其內(nèi)外徑變小2-3毫米? |
| |
| ||
| ||
| ||
| ||
小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2024-11-16 21:28 , Processed in 0.056779 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.