| Precision Inspection Service of Youngchun Bridge |
2012 |
Chungcheongbuk-do Road Management Office Chungju Branch |
 |
| Precision Inspection Service of Dangwu Bridge |
2012 |
Chungju |
|
| Precision Inspection Service of Jecheon Sewerage Treatment Facility |
2011 |
Jecheon Environment Affairs Agency |
|
| Precision Safety Diagnosis Service of Emergency Waiting Place Slope and Retaining Wall |
2011 |
Chungju Detention House |
|
| Precision Inspection Service of Dalcheon Bridge (North, South) |
2011 |
Chungju |
|
| Precision Inspection Service of Danwol Bridge |
2011 |
Chungju |
|
| Precision Safety Diagnosis Service of National Highway No.38 Bakdaljae Tunnel (Southbound) |
2011 |
Chungju Road Management Office |
|
| Precision Inspection Service of National Highway No.3 JinchonBridge (Northbound) |
2011 |
Chungju Road Management Office |
|
| Precision Inspection Service of National Highway No.3 JinchonBridge (Northbound) |
2011 |
Chungju Road Management Office |
|
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