1. Main material: Top-grade aluminum profile (thermal insulated aluminum profile is optional); Single layer or insulating glass(tempered, Low-E, coating) as your need
2. Surface treatment: Anodizing, electrostatic powder coating, fluorocarbon coating, electrophoresis coating
3. A wide range of colors
4. Inward/Outward opening
5. Available in any sizes as per your needs
6. Elegant, economical and popular use
7. Good air tightness and water / wind resistance
8. Different colors can be chosen on the interior and the exterior