|
2233| 0
|
請(qǐng)問(wèn)管道泵和多級(jí)離心泵的機(jī)封有何區(qū)別？ |
| ||
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, 2025-5-4 16:15 , Processed in 0.066632 second(s), 13 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.
發(fā)表于 2009-11-4 17:42:40
QQ好友和群
收藏
淘帖
問(wèn)題專業(yè)，描述清楚
伸手黨/灌水/看不懂