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Agụba atọ nke PDC Drag Bit 4 1/4 Inchi
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API rotary tricone bit IADC617 6 ”(152mm) maka igwu olulu mmiri
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Tricone rock bit IADC617 8 1/2″ (215.9mm) maka igwu olulu mmiri
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Onye na-emepụta API nke tricone rock bit IADC617 9 7/8 inch” (250mm)
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Ụlọ ọrụ API nke tricone roller bit IADC617 12 1/4 inch (311.1mm)
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Ụlọ ọrụ API nke obere ihe eji egwupụta nkume IADC617 17 1/2 inch (444.5mm) dị na ngwaahịa
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API tungsten carbide insert rock dill bit IADC627 3 7/8″ (98mm) dị na ngwaahịa
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Obere ihe ntụgharị IADC627 8 1/2″ (215mm/216mm)
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Ihe eji agba ígwè Tricone IADC637 4 3/4″ (120mm) maka igwu nkume siri ike
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Ezé bọọlụ tricone biit IADC637 5.5″ (140mm)
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Ụlọ ọrụ API nke TCI tricone biit IADC637 6 “(152.4mm) dị na ngwaahịa
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API TCI tricone rock bit IADC637 6 3/4″ (171.4mm)