custom-made pump impeller cd4mcu 1.material:SS316,SS316L,CF8M,CF3M,CD4MCU,CN7M,CG8M,1.4408 etc 2.standard:ASTM, DIN,JIS,BS,etc stainless steel impeller pump1.ISO9001:2000 Approved2.technique:silical sol technique/lost-wax casting/precision casting/stainless steel casting3.Material:ss316,ss316l,cf8m,cf3m,cn7m,cg8m ,carbon steel,alloy steel etc4.Standard:ASTM,AISI,DIN,JIS etc5.strict material ...