... size from 100mm to 2000mmInvestment Casting(precision casting) part with Machining :1.Process: silica sol and water glass process 2.Material ... :stainless steel,carbon steel,alloy steel,white steel,copper,brass or ... :1.Process:die forging and free forging2.Material:gray iron,ductile iron,iron,carbon steel,white steel,steel,aluminum alloy,brass ...