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High Performance KNSH110mm DTH Button Bits For Rock Drilling2025-04-27 09:51:42 |
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64mm T38 Thread Button Bit With High Corrosion Stability Tungsten Carbide2024-10-15 10:57:19 |
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165mm DHD3.5 Shank DTH Hole Opener Drill Bit For Well Drilling Drag2024-07-11 16:42:12 |