1.Item:Investment Casting Iron Parts 2.Casting Process:Investment Casting 3.Material:ductile iron 4.QC: ISO 9000 Investment Casting Ductile Iron Parts1. Quality system ... year8. Casting Process: Investment Casting , Sand Casting, Die Casting, Lost Wax Casting, Precision Casting, Gravity Casting, CNC Machining9. Material: Carbon Steel , Alloy Steel, Stainless Steel, Gray Iron, Ductile Iron, Aluminum, ...