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Ngwuputa olulu mmiri rotary tricone bits IADC835 11″(179.4mm)
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Ngwakọta ọlaedo API Rock Bits IADC845 maka nhazi siri ike
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Ọnụ ego igwe na-egwupụta nkume Rotary IADC825 sentimita 11
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API Akụkụ tricone nke olulu mmiri miri emi IADC832 12.25″ 311mm
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Ngwakọta nkume API Ngwuputa ihe IADC745 12.25″(311mm) ụlọ ọrụ mmepụta ihe
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Onye na-emepụta obere ihe nkedo HDD pilot maka ịgba ígwè corsing
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Ụlọ ọrụ API nke No-dig Pilot tricone bit maka igwe mgbapu HDD
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API Mmiri olulu mmiri maka nkume maka nhazi siri ike
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Ụlọ ọrụ API nke na-egwupụta ezé bọọlụ nke mmanụ na gas 14 3/4 ″ maka olulu mmiri miri emi
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Onye na-eweta API nke Rotary oil rig drill bit 16″ dị na ngwaahịa
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API tricone drill bit nke ejiri metal mechie maka foratmions siri ike
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Ebe a na-egwupụta mmanụ petroleum tricone API dị maka ọrịre