2204| 0
|
关于唇形密封:GB 9877-2008 和GB 13871.1-2007区别在哪? |
| ||
小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-24 02:25 , Processed in 0.048022 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.