... lampheat sink 6063/6061 T5/T6 are available Anodized, powder coating, brush,mill finish available Aluminum LED light lamp heat sink/3x1WA ... . Alloy: 6063/6061 T5/T6 are available B. Finish: Anodized, powder coating, brush, mill finish are available C. Procedure: Preciously Cutting, milling ...