custom-made pump impeller cd4mcu 1.material:SS316,SS316L,CF8M,CF3M, ... .standard:ASTM, DIN,JIS,BS,etc stainless steel impeller pump1.ISO9001:2000 Approved2.technique:silical sol technique/lost ... :ss316,ss316l,cf8m,cf3m,cn7m,cg8m ,carbon steel,alloy steel etc4.Standard:ASTM,AISI,DIN,JIS etc5.strict ... , 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu