- 21
- Jul
Emergency Exit Double Steel Door
The interior of the steel fire door is filled with a new type of environmentally friendly flame retardant and heat insulation material, which is shaped by professional equipment and pressed by environmentally friendly adhesives on the concave and convex parts of the door. The steel fireproof door is treated with fireproof sealing at the junction of the door leaf and the door frame and around the fireproof glass, which greatly enhances the fireproof performance.