Servomotors; Centrifugal pumps; Electric door closing system; Electric motors for machines; Electric power generators for emergency use; Electric pumps; Oil drain pumps; Pneumatic pumps; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Pump diaphragms; Pump impellers; Screw pumps; Sewage pumps; Submersible pumps; Vacuum pumps