waterjet and abrasive-jet cutting and cleaning machines; ultrahigh-pressure fluid pumps; machines and machine tools for the cutting and forming of materials, and for the manufacture of electronics; structural and replacement parts for waterjet and abrasive-jet cutting and cleaning machines, ultrahigh-pressure fluid pumps, and machines and machine tools; nozzles, valves, cutting heads, orifices, plungers and seals, all for use in waterjet and abrasive-jet cutting and cleaning machines