... casting part with machining:1.Process: Resin sand or Furan Resin Sand and green sand2.Material:Grey iron,Ductile iron,Malleable Iron, ... size from 100mm to 2000mmInvestment Casting(precision casting) part with Machining :1.Process: silica sol and water glass process 2. ... with machining:1.Process:die forging and free forging2.Material:gray iron,ductile iron,iron,carbon steel,white steel,steel,aluminum ...