
Custom Color Steel Door - Matches Your Wall Panels for Uniform Appearance. Customizable Thickness: Thickness can be customized to meet specific project requirements. Diverse Color Options: Available in Blue, Yellow, Grey, or DIY custom colors. High Fire Resistance: Filled with rock wool, paper honeycomb, or aluminum honeycomb for superior fire performance. Excellent Sealing: Features polyurethane foam sealing for excellent air tightness. Sound Insulation: Hollow glass observation window provides good sound insulation effect. Durable Frame Material: Constructed with 1.2mm powder coating steel frame (RAL5022). Premium Hardware: Equipped with SS304 door lock, handle, and key for corrosion resistance. Versatile Installation: Various door frame designs adapt to complex site installations.