Kingdream API 17 1/2" IADC 417 TCI Tricone Bit/Rock Bit/Drilling Bit2015-11-18 09:02:20 |
API standard Tricone drill bits heal reynolds Manufacturer for oil mining2015-11-18 23:15:06 |
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2013 hotsale TCI tricone bit for oil drilling with API certification2015-11-18 09:09:34 |
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