... steel, gray iron, ductile iron, etc· resin coated sand casting· Certificate:ISO 9001:2000· Professional Service· OEM ... alloy etc.StandardISO, GB, ASTM, DIN, JISEquipmentmelting furnace, centrifugal casting machines coated sand casting machine CNC machines ... punching machines laser carving machineSurface treatmentHeat treatment, Polishing, Sand blasting, Painting, Electro-plating, Chemical Plating, and ...