6
Acoustic panels of metal for ceilings; Acoustic panels of metal for walls
17
Acoustic insulants; Acoustical tiles; Acoustic insulation articles and materials; Acoustic baffles for soundproofing purposes; Acoustic board for ceilings [insulation]; Acoustical panels for buildings; Acoustical insulation barrier panels; Soundproofing materials; Sound-absorbing plates; Sound-adsorbing ceiling coverings; Foam for use in sound insulation; Acoustic screens for insulation; Sound-absorbing wall coverings; Rubber for sound insulation; Polyester fleece for acoustic insulation; Bark coverings for sound insulation; Acoustical insulation for buildings; Soundproofing materials for buildings; Lightweight mineral wool slabs for acoustic insulation purposes; Structures (non-metallic -) for noise abatement [insulation]; Structures (non-metallic -) for noise absorption [soundproofing]; Acoustic insulating panels made from non-metallic materials; Soundproofing materials of rock wool (not for building)
19
Non-metallic building materials having acoustic properties; Acoustic panels of wood for ceilings; Acoustic panels of wood for walls