Electrical Exhaust Fan Blade Mold
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The two-way ventilation fan is actually divided into two forms, one is a duct type, and the other is a two-way exhaust fan of the partition wall.
The simple is a two-way exhaust fan for the partition wall, which generally starts with ASB. The impeller of this type of exhaust fan is in the form of axial flow. It is installed on the wall and exhausts directly to the outside. There is a difference between air fans. This two-way exhaust fan has a stretch switch. When the exhaust fan blades are turning forward, the indoor air is exhausted to the outside, and when the exhaust fan blade switches are turned to reverse, The exhaust fan can exhaust the outdoor air into the room, and because the outdoor rain-proof louvers are not blown away by the wind, they are forced to open by stretching.
To be negotiated