... powder coating,polishing 4,OEM welcomed 5,ISO9001 anodized aluminum heat sink for bulb light 1.products detail material6063-T5Color:white/black ... & heat cooling and high efficiencyc.save material and friendly-environment4.packinga.(standard packing)plastic film wrapped for each profile in order ... /ISO14001/SUNCAP ,ect. 9.reference picture extrusion anodized aluminum heat sink for bulb light shell