Ceilings of metal; suspended ceilings of metal; ceilings with metal framework; suspended ceilings with metal framework; frames of metal for ceilings; ceiling supports of metal; framework of metal for ceilings
Metal GoodsAcoustic attenuation coatings for ceilings; acoustic attenuation coatings for walls; sound-absorbing materials with textile surface in the form of wall and ceiling coverings and wall hangings; acoustic screens for sound insulation; non-metallic structures for noise absorption [soundproofing]; sound absorbing structures of metal for buildings
Rubber GoodsCeilings not of metal; suspended ceilings not of metal; ceiling tiles not of metal; non-metallic coverings for ceilings
Nonmetallic Building Materials