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underground rock mining jumbo drilling machine
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UP31B Medium-deep Hole Mining Rig Product Description UP31B medium-deep hole mining drill rig has a minimum tunnel size of 3.8 X3.8m, which can meet ...
2026-07-08 00:38:00
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GL250 Portable Hard Rock 250m Water Well Crawler Underground Borehole Drilling Rig Description: GL250 drilling rig is mainly used in geological ...
2024-12-09 21:25:43
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