Ang pintuan ng apoy ay gumagamit ng dalawang layer, kung saan ang pinto na bakal ay inilalagay sa labas at ang bakal na kahoy na pinto ay inilalagay sa loob, na maaaring mapabuti ang oras ng paglaban sa sunog kung sakaling may sunog.

https://ztfiredoor.com/23951.html

emergency door exit fire,metal na pinto ng apoy,emergency fire exit door panic exit push bar lock,metal fire proof na mga pinto,emergency double door sunog,metal fire rated na pinto,emergency door exit fire,makapal na mga bisagra ng pinto ng flag fire,emergency double door sunog,emergency fire exit proof doors hotel,emergency fire exit door panic exit push bar lock,panic fire door hand push lock,emergency door exit fire,emergency exit fire-rated security door,emergency double door sunog,emergency fire exit door panic exit push bar lock