... Screws castings.We supply goods according to standards of ROHS and ISO, including carbon steel, stainless steel,low alloy steel,heat resistance steel ... ,sand blast, phosphating, grindingMATERIAL CAPABILITYCarbon steel, alloy steel, stainless steelHeat resistance steel,MAIN ADVANTAGES1. professional manufacturer, high ... fine11.Reorder Buy Decorative Screws,Galvanized Screws,Tapping Screws Products