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165*9144mm DTH Drilling Tools High Grade Steel Forging Type API Standard2022-03-15 15:42:19 |
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Button Type Reamer Bit 102mm / 12 Degree Button Bit 64-127mm Diameter2020-05-22 17:05:14 |
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Thread domed reaming button bits ST68 152mm For Fast Penetration Rates2019-11-13 15:08:29 |
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