1. Special explosion relief structure and core materials;

2. When an explosion occurs, the explosion vent can relieve the explosion pressure outdoors to minimize the degree of damage;

3. Use occasions: chemical manufacturing, hazardous chemical warehouses and flammable and explosive places, etc.

Hardware features:

1. Stainless steel bearing hinges reduce the opening friction of the door leaf;

2. The lock adopts a flat-push escape lock with self-closing door and emergency escape functions.