1273| 1
|
GB 19761-2020 通风机能效限定值及能效等级 |
| ||
发表于 2023-2-14 18:28:40
|
显示全部楼层
| ||
手机版|小黑屋|机械村 ( 渝ICP备17010994号-1|渝公网安备50022702001048号 )
GMT+8, 2024-11-21 22:22 , Processed in 0.012835 second(s), 3 queries , Gzip On, Redis On.
Powered by 机械村
Copyright © 2012- Jixiecun.com