Customized Fire Doors Fire Resistance Standards Unchanged

- Nov 04, 2016-

Market Shang all supply fire door, steel wood quality fire door according to its refractory limit can is divided into, class a fire door, Serie b fire door, c level fire door, three big class, its refractory time requirements respectively for 90 minutes, 60 minutes and 30 minutes, fire door Shang equipped with of all of hardware accessories must is has fire standard of fire hardware accessories, fire door custom still followed these standard.

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