
Double Steel Security Door for Industrial Buildings on Sale (CHAM-DSD01). UL Fireproof Certification: Certified fireproof steel door with 30-120 minutes fire retardancy. Customizable Design: Size, color, and design can be customized to meet specific needs. High-Quality Materials: 1.0mm cold rolled steel leaf, 1.5mm frame, and aluminum silicate infill. 1-Year Warranty: Comprehensive 1-year warranty covering quality and service issues. Versatile Application: Suitable for commercial buildings with swing open style and fireproof function. Flexible Payment: Accepts T/T, Western Union, and other secure payment methods. Fast Delivery: Delivery within 15-30 days after confirming requirements. Professional Support: Provides installation manuals and honest business service guarantee.