If there is a fire, the high temperature resistance of the fireproof door lock can also help to delay the fire and extend the evacuation time.

https://ztfiredoor.com/23974.html

fire rated steel doorswholesale single leaf door,lawang geni premdor,lawang geni tunggal,lawang banyu lan geni (a60) 1700 x 700 mm karo a,lawang geni ekologis,fire rated steel doorswholesale single leaf door,fire proff doors,fire rated invisible door,lawang geni premdor,lawang elevator fire rated,lawang banyu lan geni (a60) 1700 x 700 mm karo a,lawang darurat geni,fire rated steel doorswholesale single leaf door,lawang rumah sakit tahan geni,lawang geni premdor,bs baja lawang geni,lawang banyu lan geni (a60) 1700 x 700 mm karo a,lawang ngleboke dirating geni terisolasi