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8 1/2" IADC637 Tricone Roller Rock Bit , Hole Opener Reamer Dth Bits2022-03-15 15:38:40 |
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Hydraulic Bench Dth Button Bits R32 / T38 / T45 / T51 For Drilling Tools2019-10-23 16:40:42 |
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R32 76mm For Drilling Thread Reaming Button Bits2022-03-15 16:20:23 |
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Extremely Fast Penetration HQ Pdc Core Bit For Geotechnical Drilling2021-08-10 11:16:13 |
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12° 41mm Rock Drilling Taper Button Bit for Quarrying with High-Quality2025-10-10 13:20:22 |