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13 5/8 Inch Iadc 517 Seliba sa Metsi Tci Tricone Dri...
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7 1/2 Inch Api Mele ea Ts'epe e Tloaelehileng ea Boleng bo Phahameng...
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7 7/8 Inches Iadc 537 Tci Tricone Rock Bit Bakeng sa ...
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Hard Rock Diamond Core Pdc Drill Bit
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HD100A Rock khatello e phahameng ea DTH hamore 10inch
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9 1/2 Inch Api 7-1 standard integral spiral bla...