2274| 0
|
45號(hào)圓鋼出廠時(shí)的脫碳層一般在什么范圍內(nèi),?--[請(qǐng)教] |
| ||
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, 2025-2-12 01:55 , Processed in 0.054714 second(s), 13 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.