JJD is  a metal supplier for the precision cnc machining parts, which were widely used in the field of medical device, aerospace & aviation, military, automobile, industrial equipment, electronics and commercial use. The materials we can work, includes stainless steel, carbon steel, brass, aluminum, plastic, titanium, etc..  As an OEM manufacturer, we can also do the ordinary finish treatments in house, such as zinc plating, nickel plating, chroming, QPQ, blackening, heat treatment, polishing, grinding, anodizing, PVD coating, etc..