2759| 2
|
用20CrMnTi滲碳淬火加工齒輪,如何才能提高疲勞壽命? |
點評
打廣告打成這種德性,誰敢相信你家產品的質量。
| ||
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-8-6 00:14 , Processed in 0.066452 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.