2149| 7
|
对于一根油管来说怎样才算是高频振动???? |
| ||
发表于 2011-11-12 16:34
|
显示全部楼层
| ||
| ||
发表于 2011-11-18 14:44
|
显示全部楼层
| ||
GMT+8, 2024-11-25 17:39 , Processed in 0.060012 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4
Copyright © 2001-2021, Tencent Cloud.