... small order accepted 4.High Precision investment casting Detail Description of investment casting : Casting processMaterailInvestment castingASTMA148class80-40 ... -25CrMo4 Die castingC1040 ,Alsi12Material: alloyProcess: sand casting ,investment casting ,die casting and so onStandard: GB ,ASTM ... product:precision machined copper parts,sand casting,investment castings,forged casting,copper gear & worms, ...