one man water well drilling rigs, one man water well ...
easy operation one man water well drilling rig for sale Applications: Geological general investigation and exploration, road and tall building groundsill exploration, kinds of hole in concrete structure, river levees, subgrade grouting hole drilling and direct grouting, civil water wells and geothermal air conditioner, etc. open hole caliber 220mm End hole caliber 75mm Drill pipe caliber 50mm Drilling angle …
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