... anodizing 3)Our capacity:melting,tooling,extrusion,CNC precision machining & finishing Aluminum Heatsink with balck ... procedureDie desiging→Die making→Smelting&alloying→Extruding→Cutting→CNC machinig→Driling→Tapping→Surface treatment→Welding→Assembling→ ... 9001:2008 TS16949:2002DocumentsMill Certificate,RoHS,REACH(SVHC),Working Instruction,Inspection Instruction,Packing Instruction,PPAP(including ...