... ,folding window,fixed window&hung window4.And casement/French door,sliding door,folding door and tilt&sliding door1.Manufacturer since 1999,know well ... 3.Hurricane resistance grade N4 for sliding window&door,grade N6 for others 4.Factory pass the examination of AS2047 5.Glass ... ,folding type,rolling type,fixed type5.Color-powder coating,anodizing,wooden grain6.Common types below: aluminum door