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ENTechnological roads
 | Laying firm soil layers of road bed base course for technological roads along oil and gas pipelines, roads along power lines, access ways to large open-pit mines, access ways to oil and gas extracting facilities, and roads of lumber companies |
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| Technological roads along oil and gas pipelines and access ways to extracting facilities | Roads along power lines |
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| Roads of lumber companies | Technological roads along railways |
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| Access ways to large open-pit mines |