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133mm Concentric Casing Drilling bits With 3 Wings For undtable formation2025-05-21 17:56:44 |
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Concentric Dth Down Hole Hammer Drill Bits ODEX System2025-05-20 17:24:02 |
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High Performance Concentric Dth Drilling Bits Odex Casing System 3 inch2025-05-22 17:18:57 |