|
2275| 0
|
钢材热处理变形收缩量怎么算有依据吗 |
| ||
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, 2024-11-23 03:28 , Processed in 0.050033 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.
发表于 2010-7-9 21:43:56