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7 7/8inch 200mmTricone bits selling directly from API Certified Factory2019-07-12 15:36:47 |
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12 1/4 311.1mm TCI Tricone hard rock drill bit for water well drilling2019-07-15 14:23:44 |
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190mm TCI Tricone hard rock drill bit for water well drilling2019-07-12 10:49:26 |
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Blue Steel Tooth Rotary Bits , Roll Forged 17 1/2 Inch Steel Tooth Bit2020-04-16 10:01:00 |