1. copper water impeller 2. 35 years casting experiences 3. CNC, all ... casting, brass casting, sand casting, die casting, gravity, high pressure die casting, low pressure die casting,copper foundry ... 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