Degreasing apparatus utilising an air blast pressure machine; Sand blasting machines; Shot blasting machines; Apparatus for cleaning conduits; Apparatus for cleaning contaminated articles; Apparatus for cleaning pipes; Apparatus for cleaning tubes; Apparatus for the cleaning of conduits; Apparatus for the cleaning of pipelines; Apparatus for the cleaning of tanks; Apparatus for use in cleaning buildings; Attrition machines for cleaning; Cleaning apparatus for industrial purposes; Cleaning guns (pressure washing machines); Cleaning machines for aircraft; Cleaning machines for aircraft runways; Cleaning machines for buildings; Cleaning machines for gardens; Cleaning machines for industrial installations; Cleaning machines for pipe-lines; Cleaning machines for railways; Cleaning machines for roads; Cleaning machines for rolling stock; Cleaning machines for streets; Electric industrial vacuum cleaners; Electric machines for cleaning; Industrial cleaning apparatus for cleaning evaporators; Industrial cleaning machines; Industrial cleaning machines utilising pressure jets; Industrial floor cleaning machines; Jet stream devices for cleaning surfaces; Machines for cleaning pipelines; Machines for cleaning waterways; Pneumatic tools for surface cleaning (machines); Pressure cleaning machines; Robotic cleaning machines