6
Common metals and their alloys; building materials made of metal, steel, cast iron or alloy, in particular for chimneys, heaters and hearths; transportable buildings of metal; chimneys of metal; goods of metal, steel, cast iron or alloy for chimneys, namely firedogs (andirons), chimney plates, chimney grilles, chimney cowls of metal, chimney pots, chimney beams, chimney blowers, fire walls; heating and ventilation sheaths and pipes of metal; heating and ventilation sleeves and tube couplings of metal; pillars of metal for building; reinforcing materials of metal for pipes; hinges of metal
11
Apparatus for heating, cooking and ventilation; chimneys for apartments, chimney hearths and heaters; grilles for hearths and heaters; cooker hood ventilation grilles; chimney flues; heat-recovery apparatus; heat accumulators; ventilation hoods; hot air blowers; barbecues, wood-burning stoves
19
Non-metallic building material, in particular for chimneys, hearths and heaters; chimneys, not of metal; non-metallic products for chimneys, namely, chimney cowls, chimney pots, chimney beams, chimney pipes, mantelpieces, extensions for chimneys; stone, natural stone, artificial stone, building stone; sandstone for building; bricks and refractories; manufactured building timber and worked timber; glass for chimneys, hearths and chimney heaters; ducts, not of metal, for ventilating and air conditioning installations