Arched Single Flap
6063 Aluminum Alloy
Polycarbonate Sheet
Vertical
Heat Insulation, Soundproof, Airproof, Skylight and Smoke Ventilation
Finished
Multiwall Polycarbonate Sheet
Automatic Driven by Electric Actuator
Daily Ventilation and Skylight, Smoke Ventilation
Anodized or Powder Coating
Arched Top Open Single Flap
Pallet
customized