material:stainless steel more than ten years experience have factory ... grey iron,stainless steel,alloy steel,aluminum,aluminum alloyStandardISO ASTM GB ASTM DIN JISProcessdrawings-mould making-raw casting-sandblasting-rough machining ... sand blasting,polishing,electro-plating,chemical plating,paintingEquipmentmelting furnance,casting machines,drill machine,laser cutting lathes,CNC machines,grinding ...