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Changsha Changtan Geological Equipment Co.，Ltd
Changsha Changtan Geological Equipment Co.，Ltd
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AQ,BQ,NQ,HQ,PQ wireline drill bits, Impregnated Diamond Core Drill Bits

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AQ,BQ,NQ,HQ,PQ wireline drill bits, Impregnated Diamond Core Drill Bits

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AQ,BQ,NQ,HQ,PQ wireline drill bits, Impregnated Diamond Core Drill Bits

Q series core bits Size O.D I.D Availability mm mm Imp. S.S T.C. PDC TSP E.P. AQ 47.75/47.50 27.10/26.85 √ √ √ √ √ √ BQ 59.69/59.44 36.52/36.27 √ √ √ √ √ √ BQ3 59.69/59.44 33.65/33.40 √ √ √ √ √ √ NQ ...

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diamond core drill bit

      

rock drilling bits

      
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