|
1133| 0
|
[求助] 同心异径接头规格为:DN200*100 II-Sch40-20RRC 中的II-Sch40-20RRC表示什么? |
闭关者|手机版|© 2005-2026|Cncad.Net ( 苏ICP备2026083443号 )|网站地图
GMT+8, 2026-11-4 07:07 , Processed in 0.226079 second(s), 23 queries .
Powered by Discuz! X5.0
© 2001-2026 Discuz! Team.