17
ceramic materials being insulating materials; Ceramic fibres being thermal and electric insulating materials, in particular insulating cords
19
Ceramic fibres, In particular Aluminium oxide fibres, silicon oxide fibres and zircon oxide fibres and goods made therefrom and included in class 19, including ceramic wool, fireproof compounds, in particular based on refractory clay, sillimanite, bauxite, corundum, mullite, zircon mullite, chrome corundum, spinel, magnesite and silicon carbide; Refractory concrete, In particular Dense concrete, High-density shotcrete, Low cement concrete, cement-free concrete, insulation concrete, Insulating injection concrete, Special concrete and Concrete shaped parts; Refractory clay goods included in class 19, In particular Unformed fireclay mass and Fireproof cement, Firebricks; Clay-rich stones with a base of clay-rich soil, refractory clay, bauxite, sillimanite, mullite and corundum; Fire burrs, namely Chrome corundum stone, zircon oxide stone, clay soil and magnesium spinel stone; Acid resistant stone; Ceramic binding mortar; Chemically binding mortar; Building materials, not of metal, namely Vacuum mouldings of ceramic wool, aluminium oxide wool, aluminium silicon wool, alkaline-earth silicon wool, mineral wool; The aforesaid vacuum mouldings with embedded heating elements; Ceramic fibre paper, In particular Based on aluminium silicon fibre, For buildings; Ceramic fibre yarn and ceramic fibre textiles made therefrom, in particular ceramic fibre cords, ceramic fibre packages, ceramic fibre bands, ceramic fibre materials, for construction purposes; Slide ceramics (raw materials) for steel casting ladles and continuous casting distributors