Product Description Huge Casement Glass Soundproof Best Price Aluminum Swing Impact Windows Brand Name KDSBUILDING (China) Product Series Aluminum Double Hung Windows Profile Type 6063-T5 Aluminum Profile,Thermal Break & No Thermal Break Profile of international top brand Profile Color Normal Colors:White,Grey,Matt Black,Wood Grain,etc Accessory International qualified hardware of Germany,America,Australia,China Top Brands,etc Grille Grille is made of aluminum or UPVC profile,placed between the panes of the insulating glasses. Screen Fiberglass / Nylon / Stainless steel mesh & Rolling shutter outside are available. Certificate AS2047 & AS/NZS2208 & AS1288,GBT7106 & GBT8478 Function Good Insulation,Watertight,Wind Resistance,Anti-ultraviolet,Anti-thief,Durable,Anti-aging,High Strength Application Application:Commercial buildings and residential buildings including offices, hotels, hospitals, schools, supermarkets, factories, apartments, villas, houses, etc.