Detailed Product Description

Automatically controlled shutter system makes the shutter open and close automatic,and makes it dustproof,waterproof,nice lookingLow noise,big airflow,electricity-saving,convenient to installSuitable use in kitchen, warehouse without flammable, explosive and caustic air, especially good for ventilation in places where easy to produce waste gas, hot air and with bad ventilation conditionModels: GLF(5.6#,8#,9.5#,11.2#,12.5#)Airflow: 8000 - 44500 m3/hBlade--Adopts punching high quality aluminumn, and it has the advantages of light weight, beatifual and dignified in apperance, high-class, and anti-rusting.Shutter--Adpots high quality galvanized-steel, and it has the advantages of automatically controlled in opening and closing, hurricane lamp and waterproof.Blade support--Adopts high intension and die-casting alumiumn, and it has the advantages of light weight, high intensity, fast installation and anti-rusting.