Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; namely industrial auxiliaries for the mining industry, chemical industry, metal working and processing industry, paper and cellulose industry and for the sugar and food industry; chemical auxiliaries for use in biotechnological processes, namely in the food industry; chemical products for use in water and drinking water treatment, wastewater and sludge treatment, namely for thickening an...