... machining3.material :ductile iron,grey iron,stainless steel,carbon steel,aluminum, brass,etc.4.working process:sand ... together with many good foundries producing steel castings, stainless steel castings, aluminum castings and copper castings. Now it becomes a supply ... ExportCasting1. Casting Material: Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2. Standard: ISO 9001:20083. ...