... / Mill 3. AL6063-T5 Custom made CPU fanless heatsink by extrusion process Company Profile:1. With the advanced and high-tech machines ... systemMaterial:Steel, stainless steel, aluminum, zinc, copper, brass, plastic etcMachining process:CNC machining, milling, turning, drilling, planning, welding, laser cuttingSurface treatment ... , STP, STL and X-T) Custom made CPU fanless heatsink by extrusion process