Aluminum alloy venetian blinds control the rotation of the slats by manually turning a knob or using a push-rod motor to drive an internal connecting rod. The slat rotation angle ranges from 0 to 105 degrees, allowing for flexible adjustment as needed. Optimal ventilation is achieved when the slat angle is adjusted to 90 degrees. At 15-25 degrees, the blinds effectively block outside views. For complete closure to block heavy rain, the slats can be fully closed. Furthermore, when equipped with an electric system, the venetian blinds can be connected to a fire control center and used as an automatic smoke exhaust and heat dissipation damper.
