1.Dry French-style film: The traditional dry French-style film is coated with adhesive on the first substrate, and then heated to dry in an oven to evaporate the solvent. In the absence of any solvent, dry A certain temperature and a certain pressure will adhere it to the second substrate, and then become a film product after cooling. 2. Wet French film: The traditional wet French film is to apply the adhesive to the first substrate. Before the adhesive is dried, the second substrate is attached. Then, the compounded material is dried to make it have a certain strength of adhesion, and it becomes another film-coating method for the color steel movable room.