High-Standard Sturdy and Durable Steel Fire Rolling Shutter for Security Isolation

High-Standard Sturdy and Durable Steel Fire Rolling Shutter for Security Isolation. High-Strength Wind Resistance: Designed for coastal and windy areas with typhoon, rain, and sand-proof capabilities. Fire Protection Grade: Explosion-proof grade under 4 hours with fire-resistant curtain plates. Customization Options: Supports full customization from samples, designs, and flexible minor adjustments. Dual Open Method: Available in both electric and manual operation modes. ISO9001 Certified: Certified by ISO9001:2015 with 41 qualification certificates. 1-Year Warranty: Covers free maintenance and spare parts replacement for non-human damage. Fast Response Time: Technical issues handled within 24 hours via hotline or online service. Durable Material: Made of galvanized, aluminum zinc plated, or stainless steel with fireproof coating.