... Steel600tGrey Iron30tSpheroidal Graphite Iron20tNon ferrous2.5t DUCTILE CAST IRON:1.Silicasol process precision casting and soluble ... glass precision casting2.Material: Grey iron,Ductile iron, Steel, Stainless Steel, Carbon steel, Alloy ... Heat Treatment, polishing, plating, machining, ect.5.Application: Industrial parts, Machinery parts, hardware, construction parts, valve/valve ...