... OEM 5.ISO9001,export entitlement water impeller1. Copper casting, brass casting, sand casting, die casting, gravity, high pressure die casting, low ... sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing.5. OEM service available.6. Good quality and strict delivery ... , we will gladly to service you, our skype:donytrade High quality 3 inch water impeller