Natural and synthetic filtering materials (textile fabrics) for treating water, wastewater and industrial water flows, as well as for conditioning of drinking water.

Filters as parts of machines, motors or engines.

Installations for water purification; water desalination installations; water-conditioning installations; water filtration installations; filters for industrial and household purposes; devices for treating water, wastewater, drinking water and industrial water flows with filtration media made of natural and synthetic fabrics and cloths; systems for treating water, wastewater, drinking water and industrial water flows, consisting of basins, deflectors, valves, pumps, mechanical filters, gravity filters, synthetic and natural cloth filters, membranes, chain scrapers, mixers and regulating weirs for use in filtration and treatment installations for industrial and municipal water, wastewater, drinking water and industrial water flows.

Installation, repair and maintenance of septic installations; installation, repair and maintenance of water purification apparatus; installation, repair and maintenance of devices and systems for treating water, wastewater, drinking water and industrial water flows.

Technical design and planning of septic installations; technical planning and design of water purification plants; technical design and planning of devices and systems for treating water, wastewater, drinking water and industrial water flows.