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30-50M Hydraulic Crawler Small Core Drill Rig Good Efficiency For Explore Coring
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OEM 50 Meters Hydraulic Portable Core Drilling Machine
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200 Meters Depths 200mm Hole Diameter Portable Hydraulic Drilling Machine
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Easy Operate Portable Core Drill Rig 100m - 200m Drilling Depth ISO 9001 Approved
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Underground Diamond Core Portable Well Drilling Rig Drill Depth 300m Diesel / Motor Power Type
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150m Depth Hydraulic Crawler Drilling Rig , XY-1B Geological Drilling Rig
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Small Borehole Rock Core Deep Well Drilling Machine For 30-180m Depth
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XY 1 Soil Test Mineral Prospecting Dth Drilling Machine ISO CE Certification
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