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