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Ground pressure type anchor with wedge having maximum expansion property for cross slope
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System for remediating oil-polluted ground water and put remediated ground water
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Oil-water separating and remediating apparatus
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Non-destructive two-dimensional apparatus for investigating the ground
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Apparatus for remediating polluted ground water by VOCs
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Groundwater survey system that automatically monitors groundwater level and water quality
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Water quality of water measurement devices of underground water
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Water supply type boring apparatus for ground investigation
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Extraction apparatus for ground sample of ground investigation
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Air stripping devices for using a jet nozzle and VOCs contaminated groundwater purification system using thereof
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Apparatus for separating oil and water by application of ghyben-erzberg principle
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