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PQ NQ HQ Surface Set Diamond Core Drill Bits For Hard Rock2025-02-26 16:55:43 |
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BQ NQ NQ3 HQ Impregnated Diamond Core Bit For Geological Survey2025-06-24 09:17:13 |
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PQ3 Model Stable Drilling Surface Set Diamond Core Drill Bit2024-12-23 12:38:44 |
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Impregnated Casing Shoe For Geological Drilling NW HW HWT2023-11-17 10:16:11 |
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Diamond Reaming Shells With Different Drilling Rigs2025-06-26 10:55:36 |