A fire door is a type of door, or barrier used as a passive fire protection item 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 doors are made of a combination of materials, such as: timber, steel, gypsum (as an endothermic fill), vermiculite-boards.
Lebih maklumat tentang CHENG HUAT HARDWARE (SENTUL) SDN BHD
