A method of manufacturing an engine block is disclosed. The camera and the conical reflector provide a 360 field of view image around the vehicle. A second laser beam, which is coaxial with the first laser beam, is irradiated to the thin-film in such a way as not to overlap with the first irradiated region, thereby forming a second irradiated region and a non-irradiated region. 01 wt % of the total amount of the epoxy resin composition.