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API Rotary woulo fè egzèsis ti jan IADC517 4.5 pous (114mm) nan stock
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Bouton ti jan IADC517 118mm pou jeotèmal byen wòch perçage.
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API faktori nan ti jan roulo rotary IADC517 4 3/4″ (120mm)
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API bouton rotary sele Bits IADC517 5 1/4″ (133mm) nan stock
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Tungstène Carbide Insert wòch perçage ti jan IADC517 5 7/8″ (149mm)
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API Byen perçage tricone ti jan IADC517 6″(152.4mm) pou vann
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Tricone woulo perçage Bits IADC517 6 1/4″ (159mm)
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Bits bouton wòch sele TCI IADC517 6 1/2″ (165mm) pou perçage byen
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TCI tricone ti jan IADC517 7 1/2″ (190mm)
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Deep Well Tricone Bit IADC517 7 7/8 pous (200mm)
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API Tricone Bit IADC517 8.5 pous (215.90mm)
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API Tricone perçage ti jan IADC517 8 3/4 pous (222mm) nan stock