953| 0
|
[材料综合讨论区] 防排烟风管采用“钢质隔热防排烟风管 |
| ||
酚醛风管与 聚氨酯风管 各种材料都什么特点?区别在哪里?
|
||
|Archiver|手机版|小黑屋|风管行业门户网
( 沪ICP备17011661号-3 )
GMT+8, 2022-8-11 22:34 , Processed in 0.498992 second(s), 48 queries .
Powered by Discuz! X3.2
© 2001-2013 Comsenz Inc.