Grade-A fireproof plate door

The utility model discloses an A-level fireproof plate door which comprises a fixed door frame and a movable door leaf, one end of the inner side of the fixed door frame is hinged to one side of the movable door leaf through three hinges, and the other side of the movable door leaf is fixedly connected with the other end of the inner side of the fixed door frame through an intelligent lock. The front face and the back face of the movable door leaf are fixedly connected with fireproof plates through a plurality of galvanized square pipes, the outer sides of the surfaces of the two fireproof plates are fixedly connected with stainless steel copper-plated veneers through a plurality of first mounting screws, and the inner sides of the surfaces of the two fireproof plates are fixedly connected with stainless steel copper-plated plates through a plurality of second mounting screws. According to the A-grade fireproof plate door, the sound insulation and heat preservation functions can be added on the basis of the f