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Special Steel Material Well Drilling Bits DHD350-135mm Tungsten Carbide2020-03-06 00:49:20 |
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Concave Face Drop Center RC Bit Fit Complicated Gravel Formation Drilling2024-10-31 18:32:43 |
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King Sandrive Atlas Copco Type Diamond Grining Cups Pin For Bit Grinder2019-08-14 15:20:21 |
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QL60 Nickel Alloy Steel 7'' 178mm Water Well Drill Bits2020-10-09 10:59:52 |
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Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits2020-10-09 10:53:16 |