81/2 "HM952XAG عالية الجودة Bits.drill مثقاب Pdc بت للصخور الحفر ديموند
81/2 "HM952XAG عالية الجودة Bits.drill مثقاب Pdc بت ديموند الصخور الحفر، مزيج كتر مثقاب Pdc
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83/4" HS662XA 6 rezila Drill Bit, jekla organ PDC Bit, API standarda |
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91/2"HS952XA Good Quality API Specs Lowest Price Petroleum Steel Body PDC Drill Bits |
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121/4 ιντσών TCI Bit/ένθετο Tricone περιστροφικό κομμάτι τρυπανιών, νερό καλά διάτρυση του εξοπλισμού |
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