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I-China API Rotary roller mining bit IADC742 12 1/4″ esitokweni
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I-API rotary roller mining drill bits IADC425 yezimayini zegolide
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I-API rotary roller trione bits IADC735 yokwakheka okuqinile
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Imboni ye-API yekhanda elijikelezayo IADC635 yomshini wokumba izimayini
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Umkhiqizi we-API wezimayini zokumba amatshe amanani entengo ye-IADC412 esitokweni
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Umhlinzeki we-API wamabhithi e-diamond trione IADC435 yezimayini zamalahle
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I-API rotary diamond mining rock roller core bits IADC547
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Imboni ye-API yezimayini zegolide izingcezu zemithombo ye-IADC535 yokwakheka okuqinile
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Imboni ye-API yenkinobho ye-rotary miner bits IADC732 ye-hard rock
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Izingcezu zokubhoboza ifekthri IADC722 9 amayintshi ngokuqine kakhulu
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Izingcezu zokumba idayimane zasembonini ye-API IADC613 yetshe eliqinile
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I-API TCI mining bits IADC625 ye-hard rock aluminium kahle