A nonaqueous electrolyte secondary battery which can suppress the change in structure of a positive electrode active material at a high voltage is provided. The cylinder lock comprises a cylinder body, an inner cylinder and a rotating part. At predetermined points in the game, such as a certain level being achieved or a task being completed, an integral printing apparatus prints gaming images. As a result, the wafer to be polished has improved flatness and film thickness uniformity due to shifting the edge roll-off effects beyond the edge of the wafer to be polished outwards to the sacrificial substrate.