... casting experiences 3. CNC, all types of laths 4. OEM 5.ISO9001,export entitlement water impeller1. Copper casting, brass casting, sand casting ... , milling machine, drilling machine, numerical lathe, all types of lathe.4. Surface finish process: polishing, sand blasting, heat treatment, painting, powder ... to service you, our skype:donytrade High quality 2 inch water impeller