121/4 tommer TCI Drill Bit/Insert Tricone Rotary Bit, vand godt Drilling udstyr
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83/4"HM952XA 222.2 Inch Steel Body Oil Well Pdc Drill Bit Pdc Bit |
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121/4"HM952XG Drilling Equipment Rock Bit For Oil Well |
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83/4" HM 652XA olje dobro Pdc Bit, Diamond Bit, Pdc olje Pdc sveder za vrtanje nafte Pdc |
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