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181mm 7 1/8 'Blue Api 3 1/2' Reg Drag Bits Peralatan Pengeboran Air2019-08-14 15:20:16 |
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6 5/8 'API REG 3 4 Wing TC Step Drag Bit untuk Pengeboran Sumur Air2021-04-16 18:25:57 |
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6 Inch COP64 DTH Drill Bit with Flat and Convex Face for Water Well Drilling2025-11-04 17:00:09 |
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