9517| 20
|
無縫鋼管焊接后,長度會縮短3-5mm,為什么? |
| ||
| ||
回復 3# 的帖子
| ||
| ||
| ||
回復 7# 的帖子
| ||
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, 2024-11-20 22:27 , Processed in 0.054697 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.