... Sound insulation 3. Good air tightness 4. Environmentally-friendl Aluminium Fixed Window Specification: 1. Material: Aluminium Alloy 2. Style: As order. 3. Size: ... , Refective glass, LOW-E glass, Patterned glass, etc. 5. Aluminium Surface Finish: Anodizing, Powder Coating, Grinding, Blasting, Polishing 6. ... Package: Plastic sheet + Carton + Wooden box / Pallets / Iron Shelf Aluminium Fixed Window