... experience 1.Material: ductile/grey iron 2.Various Kinds 3.Sand casting,CNC machining 4.15 years casting experience5 Certificate:ISO9001 ... Cast Iron, Grey Cast IronProcessSand CastingStandardJIS DIN ASTM GBSandGreen Sand, Sodium Silicate Sand, Resin SandMin Tolerance0.05mmMachineLathe, CNC, Drilling Machine, Milling Machine ...