... . Sound insulation 3. Good air tightness 4. Environmentally-friendl UPVC Fixed Window Specification: 1. Material: UPVC (Model: 60, 70, 80, Chameber: 3, 4, 5 ... glass, Refective glass, LOW-E glass, Patterned glass, etc. 5. UPVC Surface Colour: white 6. Accessary: Made in China / Germany 7 ... 10. Package: Plastic sheet + Carton + Wooden box / Pallets / Iron Shelf UPVC Fixed Window