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Customizedl well drilling bits IADC127 14 3/4 ” (374mm)
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Mga pakyawan na tricone bits IADC127 17.5 pulgada (444.5mm)
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Cement plug drilling bits IADC127 4 3/4 pulgada (120mm)
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Bit para sa well drilling IADC127 3 7/8″ pulgada (98.4mm)
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API tricone drilling IADC127 4 5/8 inches (118mm) for sale
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Sealed bits factory IADC127 6 pulgada (152mm)
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Deep well drilling bits IADC127 12 1/4 ” (311mm)