1
NON-METALLIC SINTERED MATERIALS, NAMELY-SINTERED BORIDES, CARBIDES, OXIDES, NITRIDES, OXYNITRIDES AND CARBONITRIDES OF METALS AND SEMI-METALS IN THE FORM OF POWDERS AND CRYSTALS
7
PARTS AND FITTINGS FOR INDUSTRIAL MACHINES, MACHINE TOOLS AND ELECTRIC MOTORS, INTERNAL COMBUSTION ENGINES AND TURBINES FOR MACHINES, NAMELY-PROTECTIVE TUBES AND PIPES, PROTECTIVE SLEEVES AND COVERS, BEARINGS, MORTARS AS PARTS OF CRUSHING AND GRINDING MACHINES, CRUCIBLES AS PARTS OF METAL-MAKING AND METAL-WORKING MACHINES, IMPELLERS AND RUNNERS, AND VALVE SEATS; IMPELLERS AND RUNNERS FOR SUPER CHARGERS AND TURBINES
11
HEATING, VENTILATING, AND STEAM GENERATION INSTALLATIONS AND APPARATUS, NAMELY-EXTRACTION NOZZLES AND SPRAYING NOZZLES, DRYING AND BURNING KILNS AND PARTS THEREFOR, KILN PLATES AND SUPPORTS, AND PARTS FOR THE ABOVE GOODS
12
LAND VEHICLE ENGINE PARTS, NAMELY VALVE SEATS AND BEARINGS
17
SLIDING ANNULAR SEALS FOR PUMPS AND NON-METALLIC SINTERED MATERIALS, NAMELY-SINTERED BORIDES, CARBIDES, OXIDES, NITRIDES, OXYNITRIDES AND CARBONITRIDES OF METALS AND SEMI-METALS IN THE FORM OF SHEETS, PLATES AND DIE-SHAPED PARTS; NONMETALLIC PROTECTIVE TUBES, SLEEVES, AND COVERS FOR AUTOMOTIVE USE