91/2" HM952XG dầu và khí thiết bị khoan đá Bit
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83/4"HM952XA 222.2 Inch Steel Body Oil Well Pdc Drill Bit Pdc Bit | oil well pdc drill bit , API standard, well drilling,professional drill bit,diamond drill bit,made in china drill bit | |
81/2 "HM642XG المصنوعة في الصين الساخنة بيع ديموند Pdc الحفر بت لزيت البترول حفر الآبار | بيع الساخنة/diamond pdc الحفر بت/pdc الحفر بت/petroleum حفر بت | |
83/4" HM352XA PDC-oljekälla borrkronor / stål kroppen PDC bitar / PDC Rock borrkronor | Oljekälla borrkronor / stål kroppen PDC bitar / PDC Rock Drill bitar/PDC blad borra Bit/leverans bitar PDC/fabriken leverans högkvalitativa Diamond... | |
121/4HS662XA Kina god kvalitet Diamond Pdc Drill litt i god kvalitet myk middels myk formasjonen | laget i Kina,Website:, god kvalitet, diamant pdc borekronen, kull gruvedrift og demning bygging, wholsale borekronen | |
121/4" HM652XA матрица тялото PDC бит / диамант PDC свредло / PDC ядро бита с дюзи/нефтодобивния добре | Матрицата тялото pdc свредло, масло и пробиване, добив на въглища, класиране малко диамантено пробиване |
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