... ,PA, PE-HD,PE-UHMW etc) ♦ Aluminum (different grade),metal,brass ,copper3.surface treatment for prototypes painting,anodizing,electroplating,brushed,sandblasting ... -frequency Transducers ♦ Automotives , car lamp/light, car dashboard, car body part, auto metal parts , auto parts, motocycle parts ♦ Electronics appliances, like ...