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Corporate Data |
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Annual Report |
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Corporate History |
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Financial Statements 2017 |
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Financial Statements 2016 |
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Financial Statements 2015 |
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Corporate Policy |
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Financial Statements 2014 |
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Environmentally Friendly Technologies |
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Financial Statements 2013 |
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Recycling Use of Dredged Materials |
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Treatment of Dioxin-contaminated Soil for Effective Use |
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Major Works |
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Civil Engineering in Japan |
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Fire-Proof Cover for Tunnel Lining Protection |
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Building in Japan |
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Overseas |
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Recycling Use of Muck for Tunnel Invert |
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Contact Us |
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Pneumatic Caisson |
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Shield Tunneling Methods |
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Earth-Pressure Balanced(EPB) Shield Method ("DK Method") |
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Featuring Project |
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Taiwan High Speed Rail Project |
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Double O Tube Shield Method
("DOT Method") |
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DOT Shield Tunnel for Linear Motor System |
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DPLEX Shield Method |
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J-DPLEX Shield Method |
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Site Report |
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Pipe Jacking Method
("DK Pipe Jacking Method") |
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DREAM for Bridge Foundation at Tokyo Bay Area |
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Re-usable DK Pipe Jack Shield Method |
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ROAD CONSTRUCTION ON A SWAMP |
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Wave Mitigation Breakwater |
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8 Sets Iron-Mole in Full Operation in the Taipei Underground |
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Life Cycle Cost Cut |
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Renovation of Apron of the Ivato Airport Commenced |
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Aseismatic Technologies |
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Structural Reinforcement Technologies |
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Vibration Control Technologies |
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AWARDS |
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Seismic Isolation Technologies |
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Insulation & Durability Improvement |
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