... to drawings, samples and requirements TS 16949 certification item : steel nuts forgingmaterial : steelfinish: sand blastingproduce according to drawings, ... , non-standard forging, precision forging , machining ectIndustryauto forging part, motor forging part, tools forging, machinery forging, non-standard forging, precision forging, etc.Materialcarbon steel , stainless steel , aluminum ,brass ...