Ground air supply fresh air pipe
- product brand:GUANDKPi
- رقم الكشك：W4A48
- product specification:
- product category:制冷和空调设备的安装材料和设备-管材-管道
- product introduction:the installation method of ground air return can make dirty air discharged from the ground and fresh air is sent in from the top, which is more effective.
