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133mm Concentric Casing Drilling bits With 3 Wings For undtable formation2025-05-21 17:56:44 |
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Rock Horizontal Directional Drilling Bits With DHD Spline Shank 165mm2025-05-21 18:03:31 |
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Low Air Pressure DTH Drill Bits And Hammers CIR150 250mm2024-07-11 16:01:10 |