We can produce many kinds of heat sink in different color.Material in 6061,6063 ect.Temper in ... or mill finish.3)Surface treatmen: andozied,electrophoresis, powder coating(any color),mill finish,color painting,and so on4)Length: according ... .8-1.2<0.70.15-0.40.150.250.04-0.35<0.05 heat sink