1639| 4
|
[求助] BV线或阻燃BV线能否达到燃烧性能B2级? |
| ||
| ||
| ||
| ||
| ||
|Archiver|手机版|小黑屋|《建筑电气》杂志官方论坛
( 蜀ICP备06020337号-1 )
GMT+8, 2025-6-2 14:09 , Processed in 0.062761 second(s), 25 queries .
Powered by Discuz! X3.5
© 2001-2025 Discuz! Team.