- 18
- Jan
steel fire rated exterior door,fire resistance steel door,ul steel fire rated door rebated
The door frame of the fire door can be fixed with the wall with expansion bolts, or the iron piece can be buried in the hole when the wall is built, and the connecting piece of the door frame can be welded firmly during installation. The door closer must be installed on the fire door, the sequencer should be installed when the door is opened, the handle on the door, the fire lock and other hardware should be complete.
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