2953| 2
|
想问下德国材料编号Steel 30MnB4和Steel SSAB boron 22对应国标的什么材料 |
Archiver|手机版|小黑屋|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2025-6-17 07:39 , Processed in 0.066189 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.