4337| 3
|
3/4H硬度等级是什么意思 |
| ||
| ||
点评
为啥HV要求表面平整?
| ||
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 02:21 , Processed in 0.053916 second(s), 18 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.