The steel fire door is impact resistant, and its structural strength can withstand long-term impact and the impact of fire hydrant. When the fire is open, the steel fire door can be freely opened for escape or closed for smoke evacuation and waiting for rescue.

https://ztfiredoor.com/24160.html

ປະຕູເຫຼັກທີ່ມີໄຟໄຫມ້,24 x 80 steel door,ໄຟ​ໄຫມ້​ປະ​ຕູ​ສຸກ​ເສີນ​,ປະຕູທາງອອກທີ່ມີໄຟໄຫມ້,ປະຕູທາງອອກສຸກເສີນເຫຼັກ,ປະຕູເຫຼັກທີ່ມີໄຟໄຫມ້,steel exit doors,emergency fire door,ປະຕູທາງອອກທີ່ມີໄຟໄຫມ້,ປະຕູທາງອອກສຸກເສີນສອງເທົ່າ,ປະຕູເຫຼັກທີ່ມີໄຟໄຫມ້,fire exit gate,ປະຕູເຫຼັກທີ່ມີໄຟໄຫມ້,ທາງ​ອອກ​ປະ​ຕູ​ສຸກ​ເສີນ​,ປະຕູເຫຼັກທີ່ມີໄຟໄຫມ້,ປະຕູທາງອອກໄຟສອງເທົ່າ,ປະຕູທາງອອກທີ່ມີໄຟໄຫມ້,ປະຕູຫລົບຫນີໄຟເຫຼັກ