... air tightness 4. Environmentally-friendly Specification: 1. Material: -Aluminium Alloy - UPVC Materials (Model: 60, 70, 80, ... -E glass, Patterned glass, etc. 5. Aluminium Surface Finish: Anodizing, Powder Coating, Grinding, Blasting, PolishingUPVC Surface Color ... : White 6. Accessary: Made in China / Germany 7. Handle: Handle with ...