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New good Tricone bits & TCI drill bit for petroleum drill2015-11-18 09:05:17 |
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Tricone drill bit2015-11-18 09:12:12 |
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PDC Diamond Drilling Bits2015-11-18 23:07:31 |
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Drill Bit for Mining(PDC Drilling Bits & Tricone Bits)2015-11-18 23:07:33 |
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Carbide Inserts Drill Bit2015-11-18 23:09:58 |
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8 1/2" IADC 637 Oil Rig drill bit Manufacturer that customer trust2015-11-18 23:14:29 |
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Kingdream High Efficiency Oil Well Roller Core Drill Bit Manufacturer2015-11-18 23:14:33 |
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API&ISO drilling bits for oil and gas/supply high quality PDC drill bit2015-11-18 08:54:01 |
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diamond drill bits2015-11-18 23:08:48 |