The surface of the film-coated purification plate is covered with a layer of color film. This color film can make the steel plate have a purification effect, and it is widely used in hospitals and workshops. The performance of the color film and the base material makes the service life of the steel plate longer. The film-coated purification board is also convenient for decoration. It only needs to be combined with corrugated board or rock wool and other materials, and it can be installed with a keel. Compared with traditional decoration, it saves time and effort, and does not require paint, lime, putty and other materials. Fast and clean. Now many hospitals, libraries, and electronics factories have chosen this kind of steel plate for decoration.