1.soundproof,waterproof,fireproof,heat insulation 2.insulationg double safety glass 3.CE & ISO9001:2000 aluminum Folding door Aluminum window: Product Name Aluminum window Product MaterialAluminum AlloyGlass type insulating double glass(6*12A*6mm,5*9A*5mm,4*6argon*4*6argon*4low-e safety glass.etcGlass seal rubber(EPDM)Surface treatment Powder coating, anodizing, electrophoresis etcHardware Top ...