10085| 12
|
鋼板與鋼板之間的摩擦系數(shù)是多少? |
點評
不差錢
| ||
| ||
| ||
| ||
| ||
點評 | ||
| ||
| ||
Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2025-7-11 00:49 , Processed in 0.072992 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.