... GS-25CrMo4 Die castingC1040 ,Alsi12Material: alloyProcess: sand casting ,investment casting ,die casting and so onStandard: GB ,ASTM ,DIN , ... copper,brass, copper-aluminum alloy or according to customer's request process casting,die-casting,CNC lathe works , ... machining Major product precision machined copper(aluminium or alloy )casting parts Features High density,Hood abrasion resistance&hardness, ...