... forging, machinery forging, non-standard forging, precision forging, etc.Materialcarbon steel , stainless steel , aluminum ,brass ect .Finishheat treatment , sand blasting ,brushing & polishing ... analysis , mechanical property test , impact test ectCEISO/TS16949:2009 certificationAdvantages :high quality guarantee , TS16949 certification factorycompetitive price , manufature directly in factory ...