1. 6063/6005A-T5, 6061/6082-T6, etc 2. Anodized, Powder Coated, brushing, ... 1. Material: 6000 series, 6063/6061 recommended.2. Temper: T4/T5/T6.3. Finish: Mill, Silver / Black / Red Anodized, Powder ... : Different finish, different length, the longest length is 7m for mill finish, and also based on the weight per meter ... your design would be keep confidential. Aluminium alloy profile for guide rail