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HD-40d Man Portable Drilling Rig: HD-40D MAN PORTABLE DRILLING RIG Features: 1. This drilling rig is applicable to work in mountain, loess, hill, plain, forest, gobi, seasonal farmland for seismic prospecting, mine survey, geologic ...

HD-20c Man Portable Drilling Rig: HD-20C MAN PORTABLE DRILLING RIG Features: 1. This drilling rig is applicable to work in mountain, loess, hill, plain, forest, gobi, seasonal farmland for seismic prospecting, mine survey, geologic ...

HD-20b Man Portable Drilling Rig: project location. Main Specification: Drilling method Depth Pipe(dia.*len.) (mm) Explosive method Hole dia. (mm) Mud drilling 20 φ50x1500 After lift-ing the drills 3”, 3.5” Air(Hammer) ...

HD-40 Man Portable Drilling Rig: project nowadays. Choose high frequency matching parts of DTH hammer to improve drilling frequency when soft formation as f≤8. 5. Use lithium battery with big capacity to reduce weight at max ...

Seismic Shot Hole Drilling Rig: Features: 1. This drilling rig is applicable to work in mountain, loess, hill, plain, forest, gobi, seasonal farmland for seismic prospecting, mine survey, geologic framework investigation etc such ...

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