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Special Steel Material Well Drilling Bits DHD350-135mm Tungsten Carbide2020-03-06 00:49:20 |
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DHD340 4" -115mm Special Steel Tungsten Carbide Drill Bits For Drilling2019-12-17 17:30:40 |
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Water Well Drilling Special Steel Dth Bits DHD350-135mm Tungsten Carbide2020-03-10 13:39:15 |
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4.5" Reverse Circulation Bit With Carbide Buttons2021-03-19 16:57:44 |
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76mm 89mm 114mm 3 4 Wing Step Drag Bits For Soft Drilling2021-04-16 18:21:18 |
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Altas Copcp DTH Hammers Rock Drilling Accessories DHD340 COP442020-03-10 14:05:11 |
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165mm Chevron Drag Drill Bit 6.5 Inch API 3 1/2" For Mining2019-08-14 15:20:16 |