Steel-Wood Heat Insulation Fire Door
1. Door Case: 1.2 mm cold-rolled steel;
2. Door Leaf: Fire-retardant plywood or fire resistant paint-free plate;
3. Framework: Fire-retardant wood;
4. Thickness: 45mm;
5. Surface Finish: High temperature paint;
6. Selected wood: Fireproof pine;
7. Wood finish: Soaked for 4 hours in fire resistant fluid in a vacuum and high-pressure environment;
8. Process: Remove oil, remove rust, phosphate and passivation;
9. Internal Filler: Perlite--a new environmentally fire-retardant and adiabatic material;
10. Junction: Fireproof and sealed treatments, enhance the performance of fire prevention;
11. Type: Single, double, attached, with glass, and with bright windows;
12. Specification: 900× 2100, can customize as your requirement;
13. Fire Resistance Period: Grade A: 1.5h, Grade B: 1.0h, Grade C: 0.5h;
14. Hardware Accessories: Fire resistance period is above 1.5h.
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