Acoustic insulating boards for buildings; architectural acoustic products, namely, sound insulating ceiling panels and partitions in the form of decorative panels and partitions composed primarily of non-metal materials which function to control sound; acoustic insulating panels, tiles, screens and boards; acoustic insulating materials, namely, acoustic insulating fabrics, plastics and felts; non-metal acoustic insulating materials; acoustic insulation materials; non-metal sound absorbing mat...

non-metal plugs in the nature of plastic plugs for filling or repairing holes in wall panels