... pump 5Brand:Shantin,OEM Other name:water pump impeller parts,pump impeller,fan impeller Manufacturing process:investment casting,centrifugal ... 2.Manufacturing Processes: sand casting, investment casting, centrifugal casting etc.3.Technology: surface treatment, polishing, ... : pump & valve, shipbuilding industry, heavy machinery, engineering machinery, water treatment etc.5.Flow Liquid: water , ...