The infos about the heatsink: 1. the dimensions can be modified according to customers' requirement. 2. material type: Alloy:, 6063T5, A3003S, A1100P, A1070S or according to your request. 3. with good performance of thermal spreading. 4. optimum design for different type, associated design parameter is provided. 5. surface treatment: anodized, powder coated, polished, mill finished, sand blasting, wiredrawing and so on. Our company is a leading custom-made aluminium heatsink and aluminium profile manufacturer, we can process various heatsinks according to the customers' request by providing drawings or samples. Kindly, mail us for further informations.