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PDC çok aşamalı kule matkap BitsPDC
Угольная буровая коронка, рок
Pedacitos de taladro de perforación de arco PDC
bit de cinzel
83/4"HM 652XA Oil Well Pdc Bit , Diamond Pdc Oil Drilling Bit , Pdc Oil Pdc Drill Bit
Peu de dents en acier
Merdiven tipi sürükle Bit
Pedacito de taladro de base del diamante
Punte in metallo duro
عبر مثقاب
Costela de dois-escada PDC dielétrico bocados de broca
لولبية قضيب الحفر الجيولوجية
الحزب الديمقراطي المسيحي قوس الحفر لقم الثقب
Horizontale gesinterte Bohrer
Địa chất khoan Rod
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