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200m pneumatic tractor mounted DTH water well drilling rig machine. Up to 5 years warranty. US 6900-19000 Set. 1.0 Sets ... Pneumatic Water well Drilling Rig dth borehole drill rigs new borehole drilling machine. ... China KG430 KAISHAN 25m Pneumatic Rock Open-air Borehole DTH Drilling Rig Machine with Dust collector.
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