- 27
- Jul
Fire Resistants Doors Ei60
- 28
- Հուլիս
- 27
- Հուլիս
The fire door materials on the market are mainly divided into two cases, one is wood material, the other is steel material, fire doors of different materials have very different performance parameters. Fire doors are distinguished according to their fire resistance and can be divided into three grades: A, B, and C.