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42mm Diameter Tapered Cross Drill Bit For Mining With 7 11 12 Degrees2020-04-15 02:48:06 |
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API Certificated Diamond Oil Drill Bit Matrix Body PDC Drill Bit2022-08-25 16:16:07 |
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5-7/8" Tungsten Carbide Drill Bits For Hard Formation Pin Connection2019-07-24 15:10:19 |
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Faster Forging Carbide Tricone Rock Bit Durable For Oil And Gas Drilling2022-03-15 15:38:40 |
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YK05 Tungsten Carbide Threaded Button Drill Bit T38 Diameter 102mm2019-10-23 16:41:17 |
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Standard Button Drill Bit 115mm T51 For Hard Rock Formation Drilling2019-10-23 16:41:18 |
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R32 48mm Rock Drilling Drill Bit with Spherical Conical Ballistic Buttons2019-12-06 15:26:25 |