4747| 12
|
液氮加工 求科普 |
| ||
點(diǎn)評(píng)
一冷一熱 刀具不會(huì)發(fā)生冷脆嗎,?
| ||
| ||
| ||
| ||
| ||
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, 2025-4-23 14:36 , Processed in 0.056768 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.