... Quick Sample 4)LED Light Heat Sink Aluminum HeatsinkWelcome customizing aluminum extrusion part/heatsink 1)Material:aluminum/aluminum alloy 2)Surface treatment:Sand spray ... Polishing, Grinding, Painting, Screen printing, Tumbling , Electroplating, Fabrication: Sawing, Deburing, Milling, Drilling, Turning, Tapping, Shearing, Insulation, Platic forming, HydroformingApplication: Aluminum heat sink used ...