1
Ceramics and other hard, cast and sintered materials, including based on tungsten carbide or silicon nitride, except tiles
6
Alloys and bonds of hard, cast and sintered metals, in the form of unprocessed and manufactured parts
7
Machine tools and tools included in this class of metal or of ceramic and other hard materials for the forming or for the shaping, whether shavings are formed or not, of metallic or non-metallic materials, namely tools fitted with hard metal for turning, drilling, milling, planing, striking, drawing, sawing, compressing, stamping and punching, cylinders, parts of machines and of materials consisting entirely or partially of hard metal, namely centres of truing tools, specimens, parts of specimens, parts of hard wear-resisting metal, namely guides, nozzles, discs for rolling and polishing, ball bearings, valve cones, valve seats, push rods, for valves, except tools and machine tools used in connection with tiles and for working with tiles
8
Hand implements and tools included in this class of hard metal or of ceramic and other hard materials for forming or shaping of metallic or non-metallic materials, whether or not shavings are formed, namely tools fitted with hard metal for turning, drilling, milling, planing, striking, drawing, sawing, compressing, stamping and punching, drawing dies, cylinders, parts of hard wear-resisting metal, namely guides, flow nozzles, discs for rolling and polishing, except hand implements and tools included in this class and used in connection with tiles and for working with tiles