Aluminum profiles anodized surface film color silver, bronze. Aluminum window quality requirements: doors and windows should not have obvious scratches the surface, scratches, bruises and other defects. Aluminum windows and doors. Door colored surface adjacent the lever should have a clear color. Aluminum windows and doors surface should not have debris, burrs, oil spots or other stains, there should be no spillover junction assembly adhesives. Aluminum doors and windows processing plants. Aluminum window classification, there are two: ordinary aluminum doors and windows broken bridge aluminum doors and windows. Aluminum windows with a beautiful, sealed, high strength, widely used in construction engineering. In the home improvement, the usual aluminum doors and windows package balcony. Architectural aluminum window profiles produced by the aluminum frame, window fan structure.