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8 1/2 Unciarum PDC EXERCITATIO Bit M137 ad durissimos saxa EXERCITATIO
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12 1/4 Uncias API PDC Drill Bits Sina Factory
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12 1/4 Uncias M166 Matrix Corpus Polycrystalline Diamond Drill Bits
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12 1/4 Uncias Ferro Corpus PDC Bits Oleum Bene EXERCITATIO
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12 1/4 inches M166 Maxtrix corporis polycrystallini adamantis terebra calcaria
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12 1/4 Unciarum Matrix Corpus PDC EXERCITATIO Bits M196 Ad Oleum Bene EXERCITATIO
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API 12 1/4 inches API PDC
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7 laminae PDC EXERCITATIO bits M137 8.5 pollices bene oilfield
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API supplementum 6 baldes Matrix corporis PDC petrae terebro-6″
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Matrix corporis PDC adamantis terebra momordit M137 5 7/8 dig (149mm)
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Oleum bene exercendis Matrix corpus PDC terebra calcaria cost
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6 1/2 pollices PDC gradum drag frenum 3 Laminae pro duro puteo EXERCITATIO