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8 1/2 Inches PDC Drill Bit M137 for Very Hard Rocks Drilling
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12 1/4 Inches API PDC Drill Bits China Factory
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12 1/4 Inches M166 Matrix Body Polycrystalline Diamond Drill Bits
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12 1/4 Inches Steel Body PDC Bits Bakeng sa ho Cheka Seliba sa Oli
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12 1/4 lisenthimithara tse M166 Maxtrix 'mele oa polycrystalline taemane likotoana tsa ho cheka
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12 1/4 Inches Matrix 'Mele oa PDC Drill Bits M196 Bakeng sa ho Cheka Seliba sa Oli
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Moetsi oa li-drill API 12 1/4 inches API PDC ka setokong
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Li-blades tse 7 tsa PDC tsa ho cheka likotoana tsa M137 8.5 lisenthimithara bakeng sa sebaka sa oli hantle
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API mofani oa thepa ea 6 baldes Matrix body PDC drill drill bits-6 ″
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Matrix body PDC drill drill bit M137 5 7/8 inches (149mm)
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Ho cheka seliba sa oli Matrix 'mele oa PDC oa ho cheka likotoana tsa theko
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6 1/2 inch PDC mohato hula hanyane Li-blades tse 3 bakeng sa ho cheka seliba se thata