The main purpose of Class A fire doors is to avoid the spread of fire when there is a fire. These are generally full steel plate fire doors, which can protect for 2 hours when there is a fire.

ZHTdoors albaabbada dabka, 31 sano oo waayo-aragnimo wax soo saar ah oo albaabbada dabka iyo Daaqadaha. Albaabada dabka UL ee ugu muhiimsan, albaabada dabka EN, BS EN albaabbada dabka, iwm.