6526| 18
|
工作用錯(cuò)材料,把二個(gè)不同的材料混一起了,如何區(qū)分中碳和低碳鋼? |
相關(guān)帖子 |
|
點(diǎn)評(píng)
對(duì),教材就這么說(shuō),焊工那篇
| ||
| ||
| ||
點(diǎn)評(píng)
正解。
| ||
| ||
小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
GMT+8, 2024-9-22 06:45 , Processed in 0.060805 second(s), 20 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.