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| ‧News | |||||
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| About Jen-Yi |
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| ‧About Jen-Yi | |||||
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| Business Services |
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| ‧Manhole Pipeline | ‧Sewage Sewer | ‧Curve Pipe Jacking Engineering & Shield Tunnel Engineering | ‧Tower Foundation Engineering | ||
| ‧Tower Installing and Overhead Transmission Power Cable laying | ‧Turnkey Project | ‧Horizontal Directional Drilling Engineering | ‧Pipeline Replacement | ||
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| Accomplishment |
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| Construction Management |
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| ‧Safety and Hygiene | ‧Quality Management | ‧Environmental Protection | ‧Progress Control | ||
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| Contacts |
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| ‧Contacts | |||||
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| SiteMap |
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| ‧SiteMap | |||||
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