... sink aluminiumLED heat sink SGS audited LED heatsink extruded aluminium(copper) LED heat sink profileheat sink copper ... , bonding, deburring,CNC machining, 14)Surface finish for LED or electronic radiators/heatsinks extrusions: anodizing, brushing, milling; ... polishing15)Surface colors for extruded electronic LED heatsinks/radiators: natrual, matt black, green, red, yellow ...