custom-made pump impeller cd4mcu 1.material ... ss316l,cf8m,cf3m,cn7m,cg8m ,carbon steel,alloy steel etc4.Standard:ASTM,AISI,DIN,JIS etc5 ... DescriptionProcessProcess design; Mould manufacture; Wax pattern made; Module combining; Shell made; Module dewaxing; Shell rosting; Conventional casting ... 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu