4138| 2
|
什么钢材热处理后 变形较小,硬度很强,耐磨很大,略有韧性? |
| ||
小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-16 15:32 , Processed in 0.049453 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.