ductile iron CNC Machinings casting and cnc machining 100% quality control Material: alloy steel,carbon steel,stainless stee ductile iron CNC MachiningsProduct ... partMaterials: carbon steel, alloy steel, stainless steel,Ductile iron,Gray iron,AluminumItems: FOB NingBo or ShangHaiLead time, 30 - ... treatment after casting, such as machining, polishing, and plating 2) We make Machining part by precision ...