1. copper water impeller 2. 35 years casting experiences 3. CNC, all types of laths 4. OEM 5.ISO9001,export entitlement water impeller1 ... , painting, powder coating, anodizing, electroplating, mirror polishing.5. OEM service available.6. Good quality and strict delivery time.7. If you have ... us, we will gladly to service you, our skype:donytrade High quality 3 inch water impeller