[Water treatment plant and systems, namely, disinfection equipment, biological process equipment, sterilization equipment, clarifiers, flotators, settlers; filtration apparatus and equipment, namely, gravity separator equipment, centrifugal separator equipment, disinfection equipment; filtration equipment mounted on modules and membranes either organic or mineral microfiltration, ultrafiltration, nanofiltration and hyperfiltration or reverse osmosis, namely, sand and membrane filters, cartridge filtration units, permeable and semi-permeable membranes; parts of the above-mentioned systems, also sold as a unit, namely, pipe works and electromechanical equipment required for filtration, namely, pipes, filter]

Maintenance, reconditioning and repair of water treatment, filtration, filtration on modules and membranes intended for production of drinking water, industrial, municipal or domestic water supplies

Scientific studies and research services in the treatment and filtration of water; scientific studies and research services relating to operation of water treatment and filtration installations; technical auditing, laboratory research studies, engineering consultancy and engineering services in relation to methods for setting up equipment for water treatment and filtration