... ♦ Aluminum (different grade),metal,brass ,copper3.surface treatment for prototypes painting,anodizing,electroplating,brushed,sandblasting, ... transpartent,rubber,paint,plating and ect.Polish, transparent surface, translucent surface, painting, rubber oil, Silk-screen printing, brushed ... ♦ Toy, Game handle/controller and etc.Car model,Motorcycle model and so on; ♦Electronics appliances, like Enclosure, ...