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Ụlọ ọrụ mmepụta ihe eji egwu mmiri zuru oke IADC127 6 1/4 inch (158.8mm)
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Onye na-enye obere ihe Tricone IADC127 7.5 sentimita asatọ (190mm)
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Ngwakọta API rig IADC127 8 1/2 sentimita asatọ (215mm) maka nkume siri ike
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Nkeji Tricone dị na ngwaahịa IADC127 8 3/4 inch (222mm)
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Mpekere ezé API dị na ngwaahịa IADC127 9.5 inch (241mm)
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Ngwugwu olulu mmiri miri emi nke IADC127 13 5/8 ” (346mm) dị na ngwaahịa
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Ibe mkpọpu simenti IADC127 4 3/4 inch (120mm)
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Bit maka igwu olulu mmiri IADC127 3 7/8" inch (98.4mm)
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Onye nrụpụta obere Tricone IADC127 4 9/16 inch (115.9mm)
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Ngwakọta API tricone IADC127 4 5/8 inch (118mm) dị maka ọrịre
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Tricone bits factory IADC127 5 7/8 inch (149mm) maka igwu olulu mmiri siri ike
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Ụlọ ọrụ mmepụta ihe mkpuchi IADC127 sentimita isii (152mm)