16775| 16
|
材料的表面硬度高,耐磨性就好? |
| ||
发表于 2009-8-14 11:05:16
|
显示全部楼层
| ||
发表于 2009-8-11 12:25:20
|
显示全部楼层
| ||
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, 2024-11-14 23:42 , Processed in 0.054964 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.