... copper water impeller 2. 35 years casting experiences 3. CNC, all types of laths 4. OEM 5.ISO9001, ... , CAXA UG, CAD/CAM/CAE.3. Precision machining: CNC, milling machine, drilling machine, numerical lathe, all types of ... , mirror polishing.5. OEM service available.6. Good quality and strict delivery time.7. If you have any ... gladly to service you, our skype:donytrade High quality 3 inch water impeller