| 摘要 |
The invention relates to a fire-retarding closure in the form of a curtain (3). According to the invention, it is provided that said curtain comprises at least two layers of material (7, 8), which are connected to one another in order to form an inner space (9, 10, 18), wherein the inner space (9, 10, 18) is filled partially with a thermally expanding material (13). |
