樓主: waryea
|
用什么方法可以推起400KG重的東西?是垂直推,不能用吊的 |
| ||
| ||
小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2024-11-1 01:34 , Processed in 0.052474 second(s), 13 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.