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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
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Obere bọtịnụ Oilwell 8.5″ maka igwe ịgba mmiri na ọnụ ahịa mbelata ọnụahịa
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Onye na-emepụta ihe na-eme ka API mmanụ rụọ ọrụ maka olulu mmiri siri ike
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Mbipụta mmanụ TCI nke ejiri ígwè mechie IADC417 bụ maka igwu olulu miri emi
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Isi olulu mmanụ API maka igwe na-agbagharị agbagharị siri ike
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Ngwakọta mmanụ ezé API ígwè maka igwe mgbagharị agbagharị na-agbanwe agbanwe dị na ngwaahịa
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API Milled ezé gas gwongworo bits maka ọrịre
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Ebe a na-egwu olulu mmiri nke simenti na olulu mmiri API
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API 8 1/2 inch diamond tricone bit maka igwu olulu gas eke