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83/4» 652XA PDC сверла с 5 лезвиями для продажи твердосплавные сверла PDC для нефтяных скважин

нефтяных скважин, буровые коронки, буровых долот PDC, долота PDC лезвия, алмазные сверла PDC, хард-рок нефтяной скважины долота PDC


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