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Fabbrika tal-bit tat-tħaffir tal-bir IADC126 17 1/2 pulzier (444.5mm)
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Fabbrika tal-bit tricone IADC126 26 pulzier (660mm)
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Manifattur tal-bits tat-tricone IADC127 4 9/16 pulzieri (115.9mm)
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Tricone bits fabbrika IADC127 5 7/8 pulzieri (149mm) għat-tħaffir tal-bir iebes
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drill bits sħaħ fabbrika IADC127 6 1/4 pulzieri (158.8mm)
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Tricone bits fornitur IADC127 7.5 pulzieri (190mm)
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Bits tat-tħaffir fl-istokk IADC127 7 7/8 pulzieri (200mm)
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Bits tat-tħaffir tal-pjattaforma API IADC127 8 1/2 pulzieri (215mm) għal blat iebes
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Tricone bits fl-istokk IADC127 8 3/4 pulzieri (222mm)
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Bits tas-snien tal-mitħna API fl-istokk IADC127 9.5 pulzieri (241mm)
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Discount tricone bits IADC127 9 5/8 ”(244.5mm)
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Ras li jdur għal rig IADC127 9 7/8 ”(250.8mm)