The fire door is made of the door frame and the door leaf connected by fire hinges, and the door frame is made of pressed and bent steel plate.

https://ztfiredoor.com/24614.html

fire door with vision panel price,1 hr rated access panel,галын хаалтын үнэ,sliding fire door kitchen,60 минутын галд тэсвэртэй шилэн хаалга,fire door with vision panel price,2 hour rated access door,fire door double,sliding fire door kitchen,180 минутын галд тэсвэртэй хаалга,fire door with vision panel price,нэрлэсэн нэвтрэх хаалга,1 hr rated access panel,галын хаалганы урд хаалга,sliding fire door kitchen,milcor fire rated access doors,1 hr rated access panel