material of metal fire door

- Nov 20, 2018-

Our most common American standard fire door leaf is made of 18Ga galvanized steel sheet and 16Ga galvanized steel sheet to make fire door frame.  fire rated polystyrence for the core .


As everyone knows , fire rated polystyrence doesn't make any Poisonous gas when A fire emergency is coming. So , this is the best material for fire doors