| 摘要 |
The invention relates to a fireproof roller shutter comprising a shutter box and a shutter curtain that can be rolled up into said box, the curtain comprising a large number of hollow-profile elements that are interconnected in a hinged manner. The box and the profile elements are configured from a flame-resistant sheet metal and the profile elements are at least partially filled with a material that is at least flame-retardant and is a poor thermal conductor. |
