5142| 18
|
[求助] 20#(GB3087)材料,用于给水管道,最高压力能用到多少??? |
发表于 2009-12-29 17:35:33
|
显示全部楼层
| ||
小黑屋|手机版|Archiver|电力建设网站 ( 苏ICP备16030970号-1 )|网站地图
GMT+8, 2024-5-7 18:26 , Processed in 0.222511 second(s), 33 queries .
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.