1. the glass blade is fastened to the frame through the blade clip, which does not need to be grooved or grooved.

2. through the worm gear and worm operating mechanism can be arbitrary adjust the blade Angle, to control air volume, adjust the direction of the wind, meet the demand of different ventilation, flexible change indoor air circulation, increase the amount of indoor negative oxygen ion.

3. the product has the advantages of large ventilation area and convenient cleaning.

4. whether opened or closed, it has excellent color lighting.

5. the glass shutter has a beautiful appearance, low cost, convenient installation and easy cleaning