+ISO9001:2008 CE RoHS for soft coil copper tube box +Provide OEM service +Flexible MOQ:20pcs +Resonable ... stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear anodizing, oxidation process, powder coating, brushing, sandblasting,shot ... Steel, Iron(SPCC, SECC, SPTE, Tinplate), Aluminum Alloy, Red copper, Brass, Bronze alloy or according to your request.5.Accessories ...