| Precision Inspection Service of Yusumak Bridge |
2010 |
Chungju |
 |
| Precision Safety Diagnosis Service of National Highway No.3 Haengchon Bridge |
2009 |
Chungju |
|
| Precision Safety Diagnosis Service of National Highway No.36 Doan Pedestrian Overpass |
2009 |
Chungju |
|
| Precision Inspection Service of National Highway No.3 Josan Bridge and 10 other sites |
2009 |
Chungju |
|
| Precision Inspection Service of Dalcheon Overbridge and 3 other sites |
2009 |
Chungju |
|
| Precision Inspection Service of Naesu Bridge and 4 other bridges |
2009 |
Chungcheongbuk-do Road Management Office |
|
| Precision Inspection and Performance Improvement Service of National Highway No.4 Overbridge and 30 other bridges |
2009 |
Boeun Road Management Office |
|
| Precision Inspection and Reparing Design Service of Jeungpyeong Bridge |
2009 |
Jeungpyeong |
|
| Precision Inspection Service of Yongpyeong Bridge and 2 other Facilities |
2009 |
Cheongju Sangdang-gu |
|
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