
Great Quality High Stable Colorfast Paint Protection High-Structural Anti-Corrosion High-Strength Fire Door. Bulletproof Security: Features explosion-proof lockbody and reinforced hinges for superior safety. Customizable Dimensions: Available in standard sizes or fully customized to fit specific requirements. Durable Steel Construction: Made from cold-steel or galvanized steel with thickness up to 90mm. Advanced Surface Treatment: Five times PU painting with options for wood color, powder coating, or fluorocarbon paint. Sound Insulation: Provides 45dB sound insulation with waterproof and soundproof rubber seals. Flexible Hinge Options: Equipped with 3-4 reinforced hinges supporting 90 or 180-degree opening angles. Comprehensive Certifications: Certified with SONCAP, ISO, and PC standards for quality assurance. Free Spare Parts Support: Includes online technical support and free spare parts for after-sales service.