Building materials, refractory materials used for building, facing, lining and coating high-temperature ovens, furnaces and hearths and similar installations

Refractory materials in plastic or powdered form for use in constructing, facing, coating or lining furnaces and like structures,

Chemicals intended for use in the building industry, mineral and chemical additives for building materials; aluminates of calcium

Non-metallic building materials; cements; aluminous cements; coatings (building materials); mortars for building works; hydraulic binders; sands