In fact, fire doors are divided into many different materials, and different materials have different fire performance. When making customized fire doors, fire rating requirements should also be installed according to the actual situation. The fire protection rating is relatively high, and the price may also be relatively high.

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.