... according to drawings, samples and requirements TS 16949 certification item : ring forgingmaterial : steelfinish: sand blastingproduce according to drawings, samples and requirementsEach ... treatment , sand blasting ,brushing & polishing ,anodizing , power-coating ,zinc-plated ,chrome coated , nickel plated , rust-inhibiting oils , blacking ectCapabilitya veriety of ...