... MaterialStainless steel, copper, brass, carbon steel, aluminum (according to customer's requirement.Surface TreatmentZn-plating, Ni-plating, Cr-plating, Tin ... featuresA company with industry and trade integrationMain ProductsDowel pins, inserts, pin, automobile fittings, shaft, nut, sleeve, door knob ,toy ... : http://gdsx.en.alibaba.com stainless steel /brass bush ,cnc bushing ,inserts and lathe parts