custom-made pump impeller cd4mcu 1.material:SS316,SS316L,CF8M,CF3M, ... casting. Item DescriptionProcessProcess design; Mould manufacture; Wax pattern made; Module combining; Shell made; Module dewaxing; Shell rosting; Conventional casting; Gate removing; Precise finishing; ... 15CrNi6, 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu