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Fabbrika API ta 'Roller cone bit IADC637 3 7/8″ (98mm) fl-istokk
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Button bits fornitur IADC637 7 7/8 ”(200mm)
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API tricone blat bits IADC637 9 5/8 ”(244.5mm) fl-istokk
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TCI tricone bit IADC617 6 1/2″ (165mm) għat-tagħmir tat-tħaffir
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Fornitur API ta 'bits għat-tħaffir tal-bir tal-blat fil-fond IADC537 9 5/8″(244.5mm)
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Bit API TCI buttuna IADC537 9 7/8″(250mm) għat-tħaffir tal-bir tal-blat iebes
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Bit tal-buttuna li jdur IADC537 3 7/8″ (98mm)
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Tricone Bits IADC537 4 5/8″ (118mm)
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Tricone drill bits IADC537 4 3/4″ (120.6mm)
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Bit tal-blat API tricone IADC537 5 1/4″ (133mm)
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API rock drill bit IADC537 5 1/2 ”(139.7 mm) għal bir iebes
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API drill bits IADC537 5 5/8″ (142.9mm)