防火窗帘深棕色

The utility model relates to a screen made of fire-resistant boards, which includes the main body and a connecting device, and is characterized in that: the main body is composed of three layers of plates, the middle plate is arranged between the upper splint and the lower splint, and the side of the middle plate There are protrusions on the side, and the protrusions are connecting devices. The upper splint and the lower splint are made of Class B fireproof materials, and the middle plate is made of Class A fireproof materials.