6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
tiles, refractory tiles, [ roof tiles, ] [ antislip tiles, refractory bricks, ] refractory blocks; [ refractory cements; refractory granular materials for use in making refractory cements, blocks, shapes; ] refractory lining materials for furnaces, furnace-lining blocks, kiln-lining blocks, cupola blocks, gas-generator blocks, air-cooled furnace-lining blocks, water-cooled furnace-lining blocks, suspended-arch blocks, hearth-support blocks, furnace-wall veneer blocks; arch veneer blocks; namely, facing blocks for furnace arches and special refractory shapes and refractory cylindrical shapes for use in the construction of furnaces, fuel-burning apparatus, kilns and regenerators, cupolas, and metallurgical furnaces
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
tiles, refractory tiles, [ roof tiles, ] [ antislip tiles, refractory bricks, ] refractory blocks; [ refractory cements; refractory granular materials for use in making refractory cements, blocks, shapes; ] refractory lining materials for furnaces, furnace-lining blocks, kiln-lining blocks, cupola blocks, gas-generator blocks, air-cooled furnace-lining blocks, water-cooled furnace-lining blocks, suspended-arch blocks, hearth-support blocks, furnace-wall veneer blocks; arch veneer blocks; namely, facing blocks for furnace arches and special refractory shapes and refractory cylindrical shapes for use in the construction of furnaces, fuel-burning apparatus, kilns and regenerators, cupolas, and metallurgical furnaces
19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
tiles, refractory tiles, [ roof tiles, ] [ antislip tiles, refractory bricks, ] refractory blocks; [ refractory cements; refractory granular materials for use in making refractory cements, blocks, shapes; ] refractory lining materials for furnaces, furnace-lining blocks, kiln-lining blocks, cupola blocks, gas-generator blocks, air-cooled furnace-lining blocks, water-cooled furnace-lining blocks, suspended-arch blocks, hearth-support blocks, furnace-wall veneer blocks; arch veneer blocks; namely, facing blocks for furnace arches and special refractory shapes and refractory cylindrical shapes for use in the construction of furnaces, fuel-burning apparatus, kilns and regenerators, cupolas, and metallurgical furnaces