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Ifekthri ye-API Ibhola lamazinyo kawoyela kanye negesi yokumba izingcezu 14 3/4″ yomthombo ojulile
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Umhlinzeki we-API we-Rotary oil rig drill bit 16″ intengo esitokweni
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I-API Metal evalwe nge-oilwell tricone drill bit yamaforamu aqinile
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I-API petroleum tricone drilling bit ithengiswa esitokweni
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Inkinobho ye-Oilwell ibize u-8.5″ endaweni yokumba enenani elehlisiwe
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Umkhiqizi we-API uwoyela we-rig drill wokwakheka okunzima kahle
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I-TCI metal evaliwe ene-bearing oil bits IADC417 eyokumba umthombo ojulile
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Ikhanda lomthombo wamafutha we-API we-rotary rig ekubunjweni kokumba kanzima
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I-API Steel tooth oilwell bits yemishini yokumba eyi-rotary esitokweni
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I-API Milled gas drilling bits umkhiqizi uyathengiswa
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Ifekthri ye-API kasimende nebhuloho lepulaki likawoyela lokumba kahle
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I-API 8 1/2 amayintshi ye-diamond trione bit yokumba umthombo wegesi yemvelo