In the general technical conditions of fire shutter doors, four fire grades are stipulated for fire resistance time. There are many kinds of materials for rolling doors, but some of them are of poor quality, and some consumers break down after not using them for a year. Therefore, we must not blindly choose the shutter door. Inorganic fiber composite fire shutter refers to the shutter made of inorganic fiber material as curtain surface and steel material as splint, guide rail, seat plate, lintel and box body. , and equipped with door roller and control box, which can meet the requirements of fire control integrity. Fire shutter door is a fire isolation measure. Just like fire doors, when there is a fire accident, they can quickly isolate the fire, prevent the fire from spreading and ensure life safety. They are indispensable fire prevention facilities in modern buildings. There are inorganic cloth fire shutter doors, radiation protection cloth, aluminum silicate fire protection cloth, aluminum silicate fiber blanket, decorative cloth, steel wire, plywood, wind hook, floor and so on. Manufacturers and suppliers must ensure that the fire safety of all parts of inorganic cloth and the whole curtain fabric meets the requirements of relevant technical standards.