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28 Aug 2025
Chemolli Firebolt A 5.1
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Adjustable concealed door closer, total length 215 mm, device weight 380 gr. The preload of the door closer springs can be adjusted by turning the upper screw clockwise or anticlockwise depending on the force to be applied to the door when closing.
Categories
- Passive Fire Prevention
- Testing and Approval Services
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