Ion-exchange resins [chemical preparations]; decolorants for industrial purposes; water-purifying chemicals; wine finings; biochemical catalysts; water-softening preparations; catalysts; chemical additives to fungicides; filtering preparations for the beverages industry; beer-clarifying and preserving agents

Hot air apparatus; sanitary apparatus and installations; disinfectant apparatus; water filtering apparatus; water purifying apparatus and machines; water softening apparatus and installations; sewage disposal plants; water purification installations; water sterilizers; purification installations for sewage