1. The angle of the louver slats can be adjusted freely; The light admitting angle and light admitting capacity can be adjusted freely

2. Better waterproof and air-proof sealed

3. Adopted the false middle frame structure, the maximum air flow can be reached while the movable louver opens

4. Good looking and easy to operation

5. Different surface treatments available, such as wood pattern, powder coating, anodized, and electrophoretic coating