7
pumps, compressors and fans, Water extracting machines; Machines and machine tools for treatment of materials and for manufacturing, Filtering machines, separators and centrifuges, Separating machines, Separators, Screw separators, Separating cylinders [parts of machines], Separating cylinders [machines], Robotic separators, Vibrating separators [machines], Sewage treatment machines, Sewage pulverizers, Filtering machines used in sewage handling, Machines for discharging waste water
11
Industrial treatment installations; Gas cleaners and purifiers; Regulating and safety accessories for water and gas installations, Air treatment equipment; Air valves for steam heating installations; Separators for removing condensation by refrigeration; Separators for scrubbing gas; Separators for scrubbing air; Septic tanks for industrial purposes; Sludge drying facilities, De-watering apparatus, Wastewater treatment installations; Filters for wastewater, Sewage purification installations, Sewerage installations, Sewage disposal plants, Sewage purification apparatus, Wastewater purification units; Sewage disposal plants, Bioreactors for use in the treatment of wastewater; Neutralisation columns; Settler apparatus for sewage; Transportable instruments for processing sewage; Facilities for discharging waste water
37
Installation and maintenance of waste water systems and waste water treatment facilities, waste water discharging facilities, machines for discharging waste water
42
IT services; Science and technology services; Technical design and planning of waste water facilities, waste water treatment facilities, waste water discharging facilities, machines for discharging waste water