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    5 8월 2017 - 6:04, by , in DSPone News, No comments
    We, OTOS, are a company offering a service that makes it easier to use the electric motorcycle with the swappable batteries that can be changed instantly at a station nearby the users. Due to the worsening air pollution and the depletion of fossil fuels, the needs for electric vehicles have been increasing. However, a short...