... be nego Investment-Casting 1) Materials: grey iron, ductile iron according to customer's standard 2) Standards: ... sand casting and resin sand casting 4) Surface finishes: sand blasting, oiled, zinc, nickel, chrome plating, painting, hot-dip galvanized and powder ... counterweight, iron, construction machinery parts and other industry machinery parts. Dalian Leading Metal Ltd welcome you. iron sand casting ...