... , stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear anodizing, oxidation process, powder coating, brushing, sandblasting, ... white,blue,andother,surface colors upon request reasonanable price +power delivery OEM Junction Box4 Material: Stainless Steel, Iron( ... Structure: 9-curved model steel, welded by the high quality professional 3-ways-connected structure.7.IP55,IP56 ...