... ,6061,T4,T5,T6. Durable Anodized Surface Anodized Aluminium Solar Frame Extruded Profile 1) Application: Aluminium Solar rail Series2) Alloy Material: ... ) Certification: ISO9001, ISO14001,SGS5) Surface treatment: Mill Finish, anodized, silver matt,electrophoresis, powder paint, wooden coating, etc.6) ... by ISO9001 and “National Inspection-free product”. Anodized Aluminium Solar Frame Extruded Profile