Non-metallic building materials, in particular pipe fasteners for sliding bearings and/or cold conduits; ducts, not of metal, for ventilating and air-conditioning installations; non-metallic rigid pipes for building; fibre cement pipes, non-metal roof pipes for roof drainage or pressure pipe lines, non-metal pipe connection pieces in the nature of conventional, siphonic or emergency drainage or pipe clips; non-metal wall ducts of fibre cement; non-metal pipe ducts for use in interior and exte...

Binoculars; Magnifying glasses; Telescopes