ductile iron casting,machine part 1,Processing: sand casting; 2,OEM Service Offered 3 ... and green sand2.Material: gray iron,ductile iron,carbon steel,aluminum alloy,brass or on request of customer3.Weight:0 ... : silica sol process and water glass2.Material:stainless steel,carbon steel,alloy steel,copper,brass or on request of customer3.Weight: ... ex-work FOB CFR CIF ductile iron casting,machine part