1
Chemical products for use in industry, including chemical products for use in industry based on calcium carbonate, magnesium carbonate, dolomite, calcium oxide, magnesium oxide, dolomitic lime, calcium hydroxide, magnesium hydroxide, hydrated dolime, milk of lime and/or dolime, calcium and/or magnesium salts and mixtures out of the above mentioned materials; chemical products for metallurgical processes with mineral and/or artificial and/or metallic additives based on the above mentioned substances for slag formation and/or cleaning/refining steps in ferrous and non-ferrous metal-production; chemical products including lime-based products
19
Non-metallic construction materials including lime-based products and other non-metallic construction materials in the form of aggregates-, grain-, sand-fractions, powder or suspension out of lime, hydrated lime, limestone, dolime, dolomite, hydrated dolime and mixtures out of the above mentioned materials; lime, limestone; sand lime bricks, aerated concretes, mortars, plasters, renders, products for improvement and stabilising soils, asphalt, and road foundations, not included in other classes
42
Scientific and technological services and research and design relating thereto; industrial research and analyses; consultancy in the field of environment, civil engineering, metallurgy, iron and non-iron metal industries, paper production, glass and chemistry