200m 300m 400m depth Rock wells Air Drilling water well drill borehole drilling rig machine for sale Model Number:HQZ-260L Gray Scale

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200m 300m 400m depth Rock wells Air Drilling water well drill borehole drilling rig machine for sale Model Number:HQZ-260L Gray Scale200m 300m 400m depth Rock wells Air drilling water well drill borehole drilling rig machine Product Description The penumatic water well drilling rig adopt super hydraulic transmission, CNC control, automatic drilling experience Drilling Rock: 20M~40M Hour Hengwang series of well drilling rig is a lightweight, efficient, versatile drilling hole equipment, which is mainly applied in drilling wells, irrigation wells, geothermal wells and air holes for