LED Heatsink with CNC Machining Material: AL6063 high quality, good price short ... guaranteed, delivery time is short and service is good1. Material: Aluminum Alloy 6063,6061,etc.2. Temper available: T5, T6, etc ... , Mitering, Chamfering, CNC Milling, Bending, Deburring, Welding, Assembly. 6063 LED aluminum LED heatsink