... T8Surface treatment Mill finish,anodizing,powder coating,electrophoresis,wood grained,themal bresk.etc.color White,blackj,gray,green,yellow,brown,sliver ... . Untreated profiles (Mill finish)2. Anodizing3. Power coating4. Electrophoresis5. Wood grain6. Fluorocarbon7 Thermal break profiles8. Brush, Bending, Drill, Milling, ... , Weld,etc. Pls see the production process flow wooden grain shutter profile