... used. 3. GB5237 standard. 4. Easy installment. aluminum profile, industrial aluminum profile, aluminum extrusion, aluminum alloy1. Surface finish: anodizing, electrophoresis, powder coating, ... wooden coating, mill finish.2. Aluminum alloy 6061, 6063, 6063A, etc.3. Temper: T4, T5, ... pallets, steel rack or as per client's demand aluminum profile