A component has a surface to which a sheet material having an adhesive surface is adhered, and an adhesive target region on a surface of the component, to which the sheet material is adhered, is provided at the peripheral edge thereof with a first region and a second region. The first region includes a recess that allows a predetermined sheet material peeling tool to be insertable to a side of the adhesive surface of the sheet material. The second region is positioned in the vicinity of the first region, and includes a region not in contact with the adhesive surface of the sheet material or a region mixedly including a part in contact with the adhesive surface and a part not in contact with the adhesive surface.