... coating, painting, spraying,etc OEM cnc cast iron valve body Specifications cast iron valve body 1.Material:ductile iron,grey ... material and process1.Available material: cast iron,steel,stainless steel,brass,copper,aluminum,zinc etc2.Casting(sand casting ... quality products to clients 1materialgrey cast iron, ductile cast iron, steel, stainless steel, brass, copper, bronze, aluminum, zinc etc2sandgreen ...