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Ụlọ ọrụ Tricone bit IDC126 26 sentimita (660mm)
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Onye nrụpụta Tricone bits IDC127 4 9/16 sentimita (115.9mm)
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Ụlọ ọrụ Tricone bits IAC127 5 7/8 sentimita (149mm) maka igwu mmiri nke ọma.
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Ụlọ ọrụ mmepụta ihe dum IDC127 6 1/4 inch (158.8mm)
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Tricone bits soplaya IDC127 7.5 sentimita (190mm)
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Ngwunye ihe na ngwaahịa IAC127 7 7/8 inch (200mm)
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API rig drilling bits IAC127 8 1/2 inch (215mm) maka nkume siri ike
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Tricone ibe n'ibe na ngwaahịa IAC127 8 3/4 inch (222mm)
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API igwe igwe ihe nha nha na ngwaahịa IDC127 9.5 inch (241mm)
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Mbelata tricone iberi IDC127 9 5/8 ”(244.5mm)
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Isi na-atụgharị maka rig IAC127 9 7/8 ”(250.8mm)
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3 cones rola ibe n'ibe IDC127 11 5/8 "(295mm)