Fire soundproof door WHFDSI EIS-30/38DB
Web thickness - 45 mm. In the strapping of the canvas, a combination of pine and LVL timber was used. Also, the beech array is used in the strapping.
On the box and canvas are 2 circuits of a soundproof seal. A contour of the fire-resistant foaming seal is installed in the box. The door must be equipped with a threshold.