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- Open Network System Co., Ltd
- CEO. Park bong kyun
- Business number. 107-81-694444
- Address. 40 Imiro, Uiwang-si, Gyeonggi-do, No. 907 Bi-dong (Foil-dong)
- Tel. +82-1544-0357
- Fax. +82-31-8084-3337
- Email : open@open-network.co.kr
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