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Amabhithi enkundla kawoyela e-API awokumba umthombo ojulile ngentengo enesaphulelo
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Ibhithi lenkinobho ye-Oilfield API enenani elehlisiwe esitokweni
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I-tricone bit yamafutha okwakheka okuqinile yokumba umthombo ojulile
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Imboni ye-API ye-rubber evaliwe ene-oil roller drill drill bit
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China API ifektri kawoyela ejulile kahle kancane for rock kanzima
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Imboni ye-API ye-natural gas trione rock drilling bit