1 material:aluminum,carbon steel,gray irom ,ductile iron,etc 2 resin coated sand casting 3 Certificate:ISO 9001:2000 coated sand casting Detailed Product DescriptionMaterial: aluminum , carbon steel, gray iron, ductile iron, etc· resin coated sand casting· Certificate:ISO 9001:2000· Professional Service· OEM is welcomed· Used in metallurgy, automobile, aero, chemical, ship hardware and other ...