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Yuichi SEGUCHI
Osaka Main Office, CTI Engineering Co., Ltd.
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Michi TSURUYA
Osaka Main Office, CTI Engineering Co., Ltd.
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Keisuke KAJI
Kyusyu Branch Office, CTI Engineering Co., Ltd.
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Shinji KUSAKA
River Environment Division, Yodogawa River Office, Ministry of Land, Infrastructure, Transport and Tourism
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Shigekazu YUBA
Takatsuki Branch Office, Yodogawa River Office, Ministry of Land, Infrastructure, Transport and Tourism