... (different grade),metal,brass ,copper3.surface treatment for prototypes painting,anodizing,electroplating,brushed,sandblasting,printing,transpartent,rubber ... digital camara case, DVD/VCD case,MP3/4 case, Coffe oven case, TV case, hair dryer, LED light case, air conditioner case, Rice cooker ... informed about every step of production progress and quality.Professional after service,keep your eye on ...