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New Arrival PDC Diamond Drilling Bits/pdc drill bit2015-11-18 23:07:32 |
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China tipped tricone bit that customer trust with API certification2015-11-18 09:09:33 |
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steel tooth drill bit (high quality dril bit)2015-11-18 09:11:41 |
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steel tooth drill bit (high quality dril bit)2015-11-18 23:10:00 |
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Hotsale kingdream tipped tricone bit for water well drilling2015-11-18 23:12:51 |
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China High Quality Oil Well Roller Core Drill Bit Manufacturer2015-11-18 23:14:32 |
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Hotsale tipped tricone bit with API certification for mining2015-11-18 09:08:26 |
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High efficiency TCI tricone bits for mining that customer approved2015-11-18 09:08:27 |
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2013 hotsale TCI tricone bit for oil drilling with API certification2015-11-18 09:09:34 |
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China tipped tricone bit that customer trust with API certification2015-11-18 23:13:19 |