+ISO9001:2008 CE RoHS for Die cast hardware parts in high quality +Provide OEM service +Flexible MOQ:20pcs +mearly ... skiving,deburring,fine blanking,soldering,bonding, punching, stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear ... oxidation process, powder coating, brushing, sandblasting,shot blasting,polishing,milling 3 Surface color: natrual ,black,matt black, green, ...