Sludge pumps; sewage treatment machines namely, sewage pulverizers being machines, diffusers used in machines for wastewater and clearwater treatment, and waste disposal units; machines and machine tools for treatment of waste water and sludge namely, sewage pulverizers being machines, diffusers used in machines for wastewater and clearwater treatment, waste disposal units, and machine tools for removing waste material; parts and fittings for all aforesaid goods namely, machine tools for remo...