Parts for heat exchangers not being parts for machines, namely, filling materials and inserts for moisture exchange and for mass transfer in the field of process engineering for cooling, for heating, for humidifying gases, for dehumidifying of gases, for the absorption of substances, for the desorption of substances and for the reaction of substances; parts for air filtering installations for industrial installations, namely, filling material and inserts; parts for water filters, namely, filling material and inserts; parts for humidifiers, namely, filling material and inserts for the humidification of air and gases; packing elements and mounting elements made of metal, plastics, glass or ceramics for gas scrubbers, for ventilating apparatus and installations, for evaporation coolers; parts for water cooling towers, namely, splash deflectors

Semi processed plastics in the nature of filtering materials for use in industrial air filter installations, for water filters and water filter installations, for cooling apparatus and installations and cooling towers, for air humidifying apparatus and installations, for gas scrubbing apparatus and installations, for ventilating apparatus and installations of mass transfer; semi-processed plastics in foil form and in the form of undulated layers for use in columns as structured packing; semi-processed materials in the form of plastic foils for filters, for gas scrubbing installations, for refrigerating installations and cooling towers, for installations of mass transfer, for air humidifying installations, for ventilating installations and/or for rain water or waste water treatment installations