7220| 13
|
长24米的零件的轧辊需要热处理,谁可以做? |
| ||
只听说过水淬油冷的时候调个头在油里缓慢冷却的
| ||
| ||
| ||
| ||
| ||
| ||
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, 2024-11-26 19:05 , Processed in 0.053682 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.