custom-made pump impeller cd4mcu 1.material:SS316,SS316L,CF8M,CF3M,CD4MCU,CN7M,CG8M, ... 2.standard:ASTM, DIN,JIS,BS,etc stainless steel impeller pump1.ISO9001:2000 Approved2.technique:silical sol technique/lost-wax casting/precision casting ... , 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu