Superior-Quality Steel Structure Steel Fireproof Roller Shutter for Office Building Internal Security

Superior-Quality Steel Structure Steel Fireproof Roller Shutter for Office Building Internal Security. Fireproof & Explosion-Proof: Explosion-proof grade <4 hours, compliant with GB 14102-2005 standards. Wind & Weather Resistant: Typhoon-resistant, rain-proof, moisture-proof, and sand-proof for coastal areas. Full Customization: Customizable from samples, designs, and full specifications to fit non-standard projects. Dual Control Mode: Supports both electric and manual open methods with three-key electronic button. High-Strength Material: Made of galvanized/aluminum zinc plated steel with 0.8~1.2mm thickness. One-Stop Service: Includes on-site survey, design, manufacturing, delivery, and post-maintenance. ISO9001 Certified: Certified by ISO9001:2015 with 41 qualification certificates and 100% inspection. Fast Production: Peak and off-peak season lead time within 15 workdays.