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Homeby Witness Moecki
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RE: [터널] 지하철터널-서울지하철 9호선 921공구

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sean2masaaki (83)in #kr • 7 years ago

특별한 보안이 걸려있지는 않습니다^^ tbm공법 참고로 보시면 될듯 합니다:)

7 years ago in #kr by sean2masaaki (83)
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