7
Machines and machine tools for treatment of materials and for manufacturing; machine and machine tools for treatment of molten metals and for manufacturing metals; machine parts for machine and machine tools for treatment of molten metals, in particular, lances for treatment of molten metals, including, powder injection lances, gas stirring lances, gas injection lances, desulphurization lances, oxygen lances, argon lances, monolithic lances and refractory lances; machine and machine tools for degassing molten metals, in particular, machines for carrying out the RH process (Ruhrstahl-Heraeus process) for degassing molten metals, namely, RH degasser; machine parts and machine fittings for RH degasser, including, RH-snorkel and RH-vessels; metal production machines; steel production machines; machines for casting molten metals; machines for controlling the flow of molten metals; refractory machine parts for machines for casting molten metals or for machines for the flow control of molten metals, in particular, stopper rods, monoblock stoppers, nozzles, ladle shrouds, tubes and slide gate plates; material production and processing machines; machines for the production and processing of molten metals; the aforesaid goods in particular being refractory goods; parts and fittings, in particular refractory parts and fittings, for all the aforesaid goods, included in class 07
19
Refractory building and construction materials, not of metal; refractory ceramic shaped parts and refractory ceramic compounds; refractory ceramic masses; refractory non-metallic masses for high-temperature aggregates, in particular high-temperature aggregates for melting, keeping or treating liquid metals; refractory ceramic workpieces; refractory bricks (not of metal); refractory shapes (not of metal); refractory moulded parts (not of metal); refractory ceramic molding compounds and castings; refractory ceramic parts, including composite parts; refractory ceramic mixtures; refractory cement; refractory mortar (nonmetallic); refractory furnace linings (non-metallic); refractory building and construction materials for machines, machine tools and aggregates for the keeping, treating and casting of molten metals as well as for use in machines for the flow control of molten metals, including, stopper rods, monoblock stoppers, nozzles, ladle shrouds, tubes and slide gate plates; parts and fittings for all of the aforesaid goods, included in class 19