custom-made pump impeller cd4mcu 1.material:SS316,SS316L,CF8M,CF3M,CD4MCU,CN7M,CG8M,1.4408 etc 2.standard:ASTM, DIN,JIS, ... ,cg8m ,carbon steel,alloy steel etc4.Standard:ASTM,AISI,DIN,JIS etc5.strict material inspection6.material test machine:spectrometer7.precision ... 15Cr3, 15CrNi6, 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu