1. The door frame is formed and bent at one time, with good overall rigidity and difficulty in deformation;

2. The surface of the door leaf has no solder joint structure and is filled with green environmentally friendly fire-proof materials;

3. The normally open fire door has the function of keeping the fire door open at ordinary times and automatically closing in case of fire;

4. Purpose location: Suitable for fire escapes with large flow of people and normally open requirements.

Hardware features:

1. Various hardware configuration plans for European Standard Hardware, American Standard Hardware, and GB Hardware;

2. Optional normally open system configuration plan:

Scheme 1-Fire door controller + electromagnetic release + hydraulic door closer + door magnetic switch;

Option 2-Fire door controller + electric door closer.