83/4" HS662XA 6 lame burghiu, corp otel PDC biţi, API Standard
PDC DRILL PIC,Website:, OŢEL CORP DRILL PIC, LAMA 6 MASINA DE GAURIT BIŢI, MEDIU DE GAURIT MOALE PIC, ULEI BINE GĂURIŢI BIŢI,
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