steel security doors,labeled parts of a door,door jamb label

Steel fire doors can be seen everywhere in our daily life, just as the name suggests, its characteristic is its fire performance. The door of steel fire door is filled with new environmental protection flame retardant heat insulation material, in the combination of the door and the door frame and the fire glass surrounding, are done fire sealing treatment, so that the fire performance is greatly strengthened.

steel security doors,labeled parts of a door,door jamb label-ZTFIRE門-防火門,防火門,防火門,防火門,鋼門,金屬門,出口門

steel security doors,防火門與普通門,防火門踢腳板,labeled parts of a door,door jamb label,

防火門製造商,steel security doors,防火大門,防火門材,labeled parts of a door,防火門厚度,鋼門 x,緊急出口門使用,防火門 90 分鐘,door jamb label,

木質防火門,steel security doors,緊急出口門使用,防火門 ul,住宅防火門