18163| 56
|
關(guān)于砂輪加工問題 |
評分
| ||||||||
| ||
| ||
點評
白剛玉適合磨淬火鋼,45鋼熱處理后硬度肯定是提高了.
| ||
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, 2024-11-18 00:24 , Processed in 0.060696 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.