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more than 4 hours fire resistance, fire back a single point of maximum surface temperature of 86.8 degrees.
Technical Performance and advantages:
Fold elevated part of the shutter drive scroll through the use of multiple linear bearings, universal joint shaft, bevel gear transmission structure and other components that drive the structure safe, reliable, stand structure and the partition board to play all the load rolling Passed to the structure of the wall to the role. Fold increase in the fire performance of fire shutter with the general structure of the inorganic cloth fire rolling shutter track performance on a similar roll, fire resistance of greater than 4.0 hours. The integrity and insulation in full compliance with fire requirements.
