... installed, tightly closed and easily assembly Aluminum Window& DoorMaterialProfileBrandChinese top brand.Surface treatmentPowder coating, Electrophoresis, Anodize and PVDFGlassGlassFloat glassTempered ... 6A single glass.SealantEPDM, PVC, SILICONE ETC.HardwareROTOInternational top brand hardwareSIEGENIAInernational top brand hardwareChinese brands and othersHongkong kinlong, Italian Glass.Performance ...