... 2. .raprototyping,tooling&production 3.Profession method processing 4. 7 years ... grade),metal,brass ,copper3.surface treatment for prototypes painting,anodizing,electroplating,brushed,sandblasting,printing ... hair dryer, LED light case, air conditioner case, Rice cooker, Air conditioner, Induction cooker, TV, Fan,shower ... service team & designing engineer to help to solve difficult problems on products ...