(1) - Water purification tanks, units and installations; fixed or mobile water treatment units and installations using especially clarification and decantation; fixed or mobile water purification units and installations using especially clarification and decantation; wastewater treatment units and installations; sludge treatment units and installations; waste treatment units and installations; fixed or mobile units and installations for municipal or industrial wastewater purification; fixed or mobile units and installations for water disinfection or sludge disinfection; fixed or mobile units and installations for water treatment by ultraviolet rays; ultraviolet lamps (not for medical purposes)
(2) - Water treatment services, wastewater treatment services, sludge treatment services, waste treatment services used in household, municipal or industrial applications; services in relation to the control of water and air; water treatment services in view of rendering water drinkable or purifying water; wastewater treatment services with ultraviolet rays; waste treatment services (transformation); sludge or water treatment services, sludge or water disinfection services, sludge or water purification used in municipal or industrial applications
(3) - Water purification tanks, units and installations; fixed or mobile water treatment units and installations using especially clarification and decantation; fixed or mobile water purification units and installations using especially clarification and decantation; wastewater treatment units and installations; sludge treatment units and installations; waste treatment units and installations; fixed or mobile units and installations for municipal or industrial wastewater purification; fixed or mobile units and installations for water disinfection or sludge disinfection; fixed or mobile units and installations for water treatment by ultraviolet rays; ultraviolet lamps (not for medical purposes)
(4) - Water treatment services, wastewater treatment services, sludge treatment services, waste treatment services used in household, municipal or industrial applications; services in relation to the control of water and air; water treatment services in view of rendering water drinkable or purifying water; wastewater treatment services with ultraviolet rays; waste treatment services (transformation); sludge or water treatment services, sludge or water disinfection services, sludge or water purification used in municipal or industrial applications
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