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91/2" HM952XA най-продажба на едро пясъчник Pdc малко за добив на нефт и газ сондажни

Проучване на нефт, газ пробиване, добро качество, на въглища добив,


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至: shannxi hainaisen petroleum technology Co.Ltd
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olje dobro bitov,Website:, PDC svedri, PDC rezila sveder, Diamond PDC svedri, Hard Rock olje dobro PDC sveder za vrtanje
2015 Hotsale TCI Tricone Bit idealna, stali ząb Tricone Bit, Tricone Rock Bit, Certified tricone nieco
vysoce kvalitní pdc diamantový vrták, těžbu ropy, standstone rock pdc vrtáku, pro prodej vrtáků, vyrobené v Číně vrtání
2015 Hotsale TCI Tricone Bit &,Website:, Steel gigi Tricone Bit, Tricone Rock Bit, bersertifikat tricone sedikit
مصنوعہ کار سمتی ڈرلنگ، گرم، شہوت انگیز فروخت، پدک ڈرل بٹ، ہیرے ڈرل بٹ، تیل کے ذخائر
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