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API drill bits faktori IADC216 4.5 pous (114mm)
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Woulo kòn Bits founisè IADC216 5 5/8 pous (143mm)
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Bits roulo sele IADC216 5 7/8 pous (149mm)
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Bits dan fraisage IADC216 6.5 pous (165mm) pou perçage byen
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Bits Tricone nan stock IADC216 6 3/4 pous (171mm)
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API tricone perçage IADC216 7 5/8 pous (194mm) pou mare lwil oliv
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Rotary Dill bit IADC216 7 7/8 pous (200mm)
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Rotary Bits founisè IADC216 10 5/8 pous (269mm)
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Achte ti perçage IADC216 17.5″ (444.5mm)
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API tricone drill bits price IADC216 4 5/8 pous (118mm)
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Deep well tricone Bits IADC216 6 pous (152mm)
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API drilling rig bits founisè IADC216 5 3/4 pous (146mm)