Push rod fire doors are widely used in shopping malls, supermarkets, apartments, buildings and other crowded places.

https://ztfiredoor.com/25487.html

2hr rated access panel,30 x 80 prehung fire rated door,fire rated hatch door,fire rated access doors,12×12 fire rated access panel,2hr rated access panel,1 hour fire rated access panel,rated door,fire rated access doors,fire rated shutter door,2hr rated access panel,fireproof attic door,30 x 80 prehung fire rated door,double leaf fire door,fire rated access doors,3 panel fire rated door,2 hour fire door prices,30 x 80 prehung fire rated door,fire rated attic access door with ladder