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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)
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Ọnụego bit Tricone API IADC637 8 1/2 ” (215.9mm)
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Ihe ndọba bọtịnụ Rotary IADC617 12 1/4 inch (311mm)
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Onye nrụpụta obere ihe eji eme ihe nke API tricone IADC637 12 1/4 ” (311.1mm)
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Ihe mkpuchi ígwè nke e ji ígwè mechie IADC637 14 3/4” (374.6mm) maka olulu mmiri miri emi
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Eriri cone atọ IADC637 17 1/2” (444.5mm)
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Onye na-enye Tricone bits IADC637 6.5 sentimita asatọ (165mm) maka nkume siri ike
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Mbido roller rotary IADC637 9 7/8 ” (250.8mm)
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Ụlọ ọrụ API nke obere ihe nkedo Roller cone IADC637 3 7/8″ (98mm) dị na ngwaahịa