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High Performance Impregnated Diamond Rod Shoe Core Hole Drill Bits2019-09-12 17:16:05 |
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Medium To Hard Formation Impregnated Diamond Core Drill Bit bq nq hq pq2019-09-12 17:16:15 |
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BWL NWL HWL PWL Mine Diamond Drill Bit For Sandstone Rock Drilling2019-09-12 17:16:02 |