Acoustic board for ceilings (other than for insulation); Acoustic ceilings; Acoustic panels of wood for ceilings; Ceilings, not of metal; Non-metallic cladding for ceilings; Non-metallic false ceilings; Non-metallic linings for ceilings; Non-metallic panelled ceilings; Non-metallic suspended ceilings; Textured surfaces for ceilings; Acoustic board for inside walls (other than for insulation); Acoustic building materials (other than for insulation); Acoustic panels (other than for insulation); Acoustic panels of wood for walls; Non-metallic building materials having acoustic properties; Studding being non-metallic framing for walls; Textured surfaces for walls; Non-metallic linings for walls; Non-metallic laminated boards for walls; Interior walls of non-metallic materials; Wooden panels for the interior decoration of rooms