1233| 4
|
为何国内教材把球化退火温度定在Ac1以上,而国外教材把球化退火温度定在Ac1以下呢... |
| ||
| ||
点评
https://wwoa.lanzouh.com/b00tat8vqf
密码:6fwc 顺便分享书籍
| ||
| ||
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, 2024-11-21 21:08 , Processed in 0.051784 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.