6
Building materials of metal, including rigid pipes and piping and fittings and connecting pieces for (pipe) conduits not included in other classes of goods, including flexible connecting hoses, pipe couplings, pipe muffs and sealing rings, all the aforesaid goods of metal; small items of metal hardware, including hinges; ceilings of metal and parts thereof, including ceiling plating and profiles, all the aforesaid goods of metal
9
Sprinkler installations
11
Heating apparatus, air treatment apparatus for air conditioning for use in commercial buildings, industry, hospitals, house construction, ship-building and in off-shore installations; parts and accessories for the aforesaid goods, not included in other classes, including heating, refrigerating and ventilation apparatus, and pipes (not included in other classes)
17
Insulating materials; insulating materials including foils of metal for insulating; soundproofing materials and/or sound-absorbing materials
19
Fire-proofing materials for ceilings