High-pressure pumps for washing appliances and installations; Machines for cleaning surfaces using high pressure water; Power-operated cleaning machines, namely, lances designed to mechanically remove scale and sludge from secondary side tubesheets in steam generators in nuclear power plants; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Power-driven cleaning lances using explosive materials; Diffusers...