fireproof steel rolling doors

According to international GB14102-93 General Technical Conditions for Steel Fireproof Rolling Curtains, the fire endurance is graded to be 3.0h, 2.0h and 1.5h. Through the inspection of the National Quality Supervision and Inspection Center for Fixed Fire Extinguisher Systems and Fire Resistance Components, its fire endurance reaches 3.0 h and 4.0 h, and through the monitoring and measuring of Willington Fireproof Monitoring Center, Britain, its fire endurance reaches 4.0h.

Smoke proof performance: The smoke leakage amount of the smoke proof shutter is no more than 0.2 m3/m2min.

Wind pressure resistance strength: 90 Pa/m2 is the average wind pressure resistance performance of each type of shutter.

Open/close speed: 2-9m/min.

fireproof steel rolling doors