【预购】两小时防火门 -（单扇）3' X 7'｜附申请消防执照｜门尺寸：812mm X 2048mm，门框尺寸：900mm X 2135mm，含五金配件

Fire Door 2 Hour

Afire dooris a type of door, or barrier used as apassive fire protectionitem within buildings to prevent the spread of fire or smoke which may consist of dangerous chemicals. It is usually the only means of allowing people to pass through a fire-resistance rated wall assembly.

Fire doorsare made of a combination of materials, such as: timber, steel, gypsum (as an endothermic fill), vermiculite-boards.