6796| 11
|
45#圓鋼淬火處理問題 |
點評
它這種調質是”軋制調質“吧,跟普通的熱處理調質有什么區別?
| ||
點評
正解
| ||
| ||
| ||
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-8-18 01:32 , Processed in 0.099329 second(s), 20 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.