6238| 6
|
什么材質(zhì)的鋼鐵柔韌性高不易折斷甚至是有記憶功能? |
| ||
| ||
Archiver|手機(jī)版|小黑屋|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, 2025-7-27 02:52 , Processed in 0.063881 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.