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9 1/2 Inch Api 7-1 yakajairwa spiral blade stabilizer, drilling stabilizer
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89mm yekuchera pombi yekuchera tsime remvura ine API IF shinda
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194mm 6m API drill collar casing uye tubing drill collar yekuchera mvura mutsime
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Kugadzira mutengo wekutengesa Hove Zvishandiso Zvese Size Mafuta NeGasi Mvura Inodhira Collar Taper Taps