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Pedacito de taladro de roca de carbón
81/2" HM952XAG chất lượng cao Pdc khoan Bits.drill bit cho Rock Daimond khoan
atravessar o bocado de broca
Elmas çekirdek matkap
Asta di trivellazione geologiche
Пропитанные Core беременных Бурса ядро
Không thể tách rời cánh ổn định
PDC nhiều giai đoạn tháp khoan BitsPDC
Không quay cánh ổn định
Vỏ ống
Three Anchor Bit
يختار PDC
Bocado de broca PDC de três lâminas
Diamant-Kernbohrer Bohrmaschine
6"HM352XA PDC Drill Bits PDC Oil Rig Drill Bit For Oil Exploration Diamond Pdc Drill Bit
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