+Flexible MOQ:20pcs for The newest Micro ATX PC chassis +Short delivery time:7-25days ... ,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 ...