1) New and unique design , durable, reliable, and simple for use , and take up small space. Custom-made is welcome 2) Adopt fiberglass window screen , small and well distributed screen mesh , good tensile resistance , without brittleness , good fireproofing , easily clean , can keep new through many years 3) Excellent wind resistance , firmly positioning , easily open and close . 4) Adopt quality aluminum profile , aging resistance , longer service life . The aluminum framework is processed by alkali wash , oxidize to form silver surface , or metal colour . Another surface-process way is powder spraying , many colors are available , moreover bright and matte is available . 5) Automatic UV filter , keep all family healthy .