... alloy 2)Standard:GB 5237-2008 3)high-quality Customized heatsink aluminium 1)Alloy No.:6005,6060,6061,6063,6063A,6463,6463A ... can supply all kinds of aluminum profile, aluminum extruded profile, heatsink aluminium ,solar energy profile, elevator guide rail profile, radiate heat profile ... production and whole inspection before package.4.Good performancePackaging: Customized heatsink aluminium