The fuse of fire shutter door is used with the matching device of fire shutter machine, which is used in the state of no one and power off when a fire occurs. When the surrounding environment reaches a certain temperature, the metal sheet is fused along with the temperature, so that the self weight of the fireproof rolling shutter door is reduced, which can isolate the smoke and fire spread.

Portes coupe-feu ZHTdoors, 31 ans d’expérience dans la production de portes coupe-feu et de fenêtres. Les principales portes coupe-feu UL, portes coupe-feu EN, portes coupe-feu BS EN, etc.