led aluminum heat sink Material: 5052, 6063, or 1060 etc Dimensions and tolerance as per your request. Deep process: sawing, milling, drilling, punching, CNC machining, etc Origin: Shanghai, China Packaging: Kraft paper, PVC film, or follow customer's request and indicated Certifications: ISO and SGS OEM service provided Contact info: Shanghai Shanze Precision Metal Products Co., Ltd TEL:86-21-67632390, 67632391, 67632392 FAX:86-21-67632397