| 摘要 |
Described is a sheath (1) for the installation of flooring comprising a layer (2) of sheet material having a plurality of truncated cone cavities (3) and having an upper face (2a), characterised by the concavities defined by the cavities (3), and a lower face (2b) opposite to the upper face (2a); the sheath (1) also comprises a plurality of fibres distributed on the upper face (2a), permanently connected to the upper face (2a) itself. |
