Product Name: GG Door Fire-Resistant Steel Rolling Shutter Doors Execution Standard: GB14102 - 2005 Fire-Resistant Rolling Shutter Doors Fire Resistance Limit: Fire integrity ≥ 4.0 h Wind Pressure Resistance Strength: Grade 80, Grade 120 Smoke Leakage: No more than 0.2 m³/(m²·min) Product Functions: The GG Door fire-resistant steel rolling shutter doors feature an attractive appearance and a compact structure. It has the characteristics of fire prevention, theft prevention, wind resistance, smoke prevention, and flexible opening and closing. The steel fire-resistant rolling shutter door with an evacuation door adds an "escape" function for people, especially when there is a power outage. Product Introduction: The GG Door steel rolling shutter doors achieves the lifting of the shutter through the transmission device and control system. It can effectively prevent the spread of fire and safeguard life and property. With a simple and beautiful overall appearance, it has the feature of a concealed rolling shaft. Its structure is reasonable and compact. The GG Door steel fire-resistant rolling shutter door only occupies a small amount of top-space but can play the role of fire prevention and heat insulation, especially suitable for large openings in buildings.