7 Pumps, namely, centrifugal pumps, none being for ponds or aquariums, not for servo pumps; units comprising centrifugal pumps and motors thereto, none being for ponds or aquariums and no combination products of servo pumps and electrical engines for industrial production processes; centrifugal pump parts, namely, impellers, bearings, sleeves, shafts, valves, bushings, stuffing boxes, gaskets, bearing rings, wear rings, wear plates, suction nozzles, housings, manifolds, guide wheels and bucket wheels, none being for pumps used in ponds or aquariums and servo pumps