1. alloy 6000 series 2. ISO certification 3.Usd for windows & doors 4. OEM Orders are welcome Aluminum profile 1.Alloy:6063,6060 2.Surface treatment:powder coating,anodizing,etc. 3.Temper:T5,T6 4.Certification:ISO9001Aluminum profile:1.Alloy:6060,6061,6063,etc.2.Temper:T4,T5,T6.3.Suface treatment:Anodizing,Powder coating,Mill finishing,Electrophoresis,PVDF coating,Wood grain painting.4.Aluminum ...