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