... color zinc-plated, blue black zinc-plated, rust preventive oil, titanium alloy galvanized, silver plating, plastic, electroplating, anodizing etc.ApplicationsAutomotive, instrument ... October, 2000, specializing in the production of CNC/AUTO lathe, springs, shafts, screws, stamping parts and other metal parts. Our main ... BV certificate,and we hope to cooperate with you . Small Low Carbon Steel Balls