material : steel finish: sand blasting produce according to drawings, samples and requirements TS 16949 certification item : hooks forgingmaterial : steelfinish: sand blastingproduce according to ... forging, machinery forging, non-standard forging, precision forging, etc.Materialcarbon steel , stainless steel , aluminum ,brass ect .Finishheat treatment , sand blasting ,brushing & polishing ...