Material:

Door leaf: consist of 7 layers, the middle is aluminum honeycomb, double metal plate, double HDF,double fashion fireproof , dampproof,  sound insulation panel

Door pocket: aviation aluminum and magnesium alloy

Airproof seal: silica gel, in ordinary temperature, it can be  smokeproof, airproof, sound insulation

Expanded airproof seal: When the temperature reaches 80 degree, the expanded airproof seal begins to expand. Nothing can go in and it will be safety enough. When out side is 1100 degree, the inner is only 140 degree.

Our door is the real interior fireproof fashion safety door.