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Rotary dill bit IADC216 7 7/8 pulgada (200mm)
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Tagatustos ng rotary bits IADC216 10 5/8 pulgada (269mm)
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Bumili ng mga drilling bits IADC216 17.5″ (444.5mm)
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Tatlong cone bits factory IADC217 3 7/8 pulgada (98mm)
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Tricone bits IADC217 4.5 inches (114mm) para sa deep rock well drilling
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API sealed roller cone bit para sa pagbabarena IADC217 5 7/8 pulgada (149.2mm)
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Rotary drilling bits IADC217 6 pulgada (152mm)
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API milled tooth tatlong cone bits IADC217 7.5 inches (190mm) in stock
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API oil steel tooth bits IADC217 8.5 inches (215mm) para sa rock drilling
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Supplier ng API bits IADC217 8 3/4 pulgada (222.2mm)
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Deep well drilling bits IADC217 11 5/8 inches (295.3mm) para sa hard rock
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API Mill tooth bits IADC217 12 1/4 inches (311mm) para sa well drilling