2844| 2
|
回火后金属外表和心部力学性能都差不多不会一个很硬一个相对于很软 |
| ||
小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-30 17:44 , Processed in 0.051061 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.