... casting 2Name:water pump impeller 3Material:carbon steel 4Usage:various types of pump etc 5Brand:Shantin,OEM Other name:water pump impeller parts,pump impeller,impeller partsManufacturing process:investment casting,centrifugal casting ... : sand casting, investment casting, centrifugal casting etc.3.Technology: surface treatment, polishing, machining, plating, heat treatment etc.4.Application: pump & ...