3565| 3
|
门式起重机主梁的截面形式,在设计初期的依据是什么? |
| ||
相关帖子 |
||
| ||
| ||
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, 2024-11-20 03:38 , Processed in 0.056345 second(s), 22 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.