1816| 6
|
表面热处理后的硬度和耐磨性由高到低的顺序是 : 渗氮、氮碳共渗、碳氮共渗、渗碳 |
| ||
发表于 2021-5-18 16:46
|
显示全部楼层
| ||
| ||
发表于 2021-5-18 18:25
|
显示全部楼层
| ||
| ||
GMT+8, 2024-4-29 09:07 , Processed in 0.164715 second(s), 11 queries , MemCache On.
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.