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Steel fire-proof rolling shutter doors (compound type) have a fire resistance time of more than 3 hours. The average temperature on the back is less than 130℃ , and the fire-proof, high-temperature resistant and flame-retardant material is filled in the middle and rolled in one time. lt has the characteristics of novel shape, smooth and beautiful inside and outside, strong steel, high wind pressure strength, excellent sealing performance and stable fire resistance. The product has the functions of electric and manual hoisting and closing. It can also be combined with smoke and temperature fire alarm system. In case of fire, automatic control can be realized. It can also be controlled by fire central control equipment.
Steel fire-proof rolling shutter doors (compound type) have a fire resistance time of more than 3 hours. The average temperature on the back is less than 130℃ , and the fire-proof, high-temperature resistant and flame-retardant material is filled in the middle and rolled in one time. lt has the characteristics of novel shape, smooth and beautiful inside and outside, strong steel, high wind pressure strength, excellent sealing performance and stable fire resistance. The product has the functions of electric and manual hoisting and closing. It can also be combined with smoke and temperature fire alarm system. In case of fire, automatic control can be realized. It can also be controlled by fire central control equipment.
