... steel, carbon steel, low alloy steel, ductile iron, gray cast iron, aluminum alloy InspectionUltrasonic test, magnetic particle test, ... parcel, bale, package, barrel, etc.Casting OEM serviceMaterial: iron, gray iron, ductile iron, steel, stainless steel, carbon steel, alloyProcess: sand casting, ... valve parts, cylinder parts, tractor parts, lathe body, furnace parts and so on. We can also supply you ...