We can make aluminum extruded heat sink as per customer's design in different material grade and heat treatment. Aluminum heatsink1 Alloy 6061,6063,6063B,6060 ... of imported CNC lathe,80sets of punching,drilling,tapping machines,with more than 36,000 product apply in electronic ,building,machinery ... main domestic customers have Shenzhen Huawei,BYD, Zhongxing, foxconn, etc. Heat sink