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BWL NWL HWL PWL Impregnated Imp Diamond Core Bit for Mining Exploration2021-03-03 16:56:06 |
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HQ PQ Diamond Reaming Shell For Geological Core Drilling2022-09-07 17:47:33 |
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Impregnated Diamond Core Drill Bits HQ HQ3 Face Discharge Turbo2019-09-12 17:16:28 |