New Design Steel Structure Steel Fire Rolling Shutter for Warehouses and Storage Rooms

New Design Steel Structure Steel Fire Rolling Shutter for Warehouses and Storage Rooms. Fire Protection Grade: Explosion-proof grade up to 4 hours for high safety. Wind Resistance: Typhoon-resistant, prying-proof, and dust-proof design for coastal areas. Customization Options: Full customization available for dimensions, open method, and fire requirements. Durable Material: Made of high-strength galvanized steel with anti-corrosion properties. ISO9001 Certified: Certified by ISO9001:2015 with 41 qualification certificates. Warranty Coverage: 1-year warranty with free maintenance and spare parts replacement. Fast Response: 24-hour response time for after-sales inquiries and issues. Factory Direct: Direct manufacturer in Shanghai with complete production equipment.