If the thickness of fire high speed door will affect its use
Apr 14, 2022
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If the thickness of fire high speed door will affect its use
The thickness of the curtain of the fire high speed door is the thickness of the steel plate used for the curtain plate. At present, there is a widespread phenomenon of jerry-cutting. Some manufacturers send the curtain plate of thicker steel plate to the testing, and after obtaining the certificate, they switch to thinner production.
Because the thickness of the curtain plate of the curtain door at the installation site is not easy to measure, it is easy to muddle through, therefore, there are many fire high speed doors because the thickness of the curtain does not meet the requirements, reducing the service life and fire resistance time.
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