Led lighting heat sink 1.Customed drawing, professional manufacturer 2.Aluminum 3.Chrome/nickel/zinc/black,sand blasting Item name: led lighting heat sinkMaterial: alumium6063Surface: sand blasting, anodized, polishing, chrome/nickel/galvanized plating, lampworking, coloring, dip coating and so on. Customed drawing, professional manufacturer. Led lamp lighting heat sink