+ISO9001:2008 CE RoHS for CNC processing parts +Flexible MOQ:20pcs +mearly 10 years making ... drilling, skiving,deburring,fine blanking,soldering,bonding, punching, stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear anodizing ... , oxidation process, powder coating, brushing, sandblasting,shot blasting,polishing,milling 3 Surface color: natrual ,black,matt black, green, red ...