Acoustic baffles; Acoustic board for ceilings (other than for insulation); Acoustic ceilings; Acoustic panels (other than for insulation); Acoustic panels, not of metal; Acoustic board for inside walls (other than for insulation); Acoustic panels of wood for walls; Acoustic panels of wood for ceilings; Acoustic sheets (other than for insulation); Acoustic tiles (other than for insulation); Acoustic screens (other than for insulation); Fibre board for use in building; Non-metallic building materials having sound deadening properties; Soundproof cabinets (structures), not of metal; Soundproof booths, transportable, not of metal; Laminated fibreboard; Cabins being sound insulated (non-metallic); Non-metallic ceiling tiles having sound insulation properties; Non-metallic building elements for the damping of sound; Soundproof hoods (structures), not of metal