Engines and motors for model vehicles, aircraft and boats; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; Hydraulic valves being parts of machines; Industrial surface treatment equipment, namely, plasma treatment systems comprised of a high frequency, high voltage generator, treating heads and nozzles and structural parts therefor; Machine parts, namely, bearing inserts; Machine parts, namely, bearings; Machine parts, ...