10 Years
Matrix Body and Steel Body PDC Drill Bit for Stone Drilling 1. Specification Diameter Wings PDC Tip Thread mm inch 28 2 As request API,NQ,HQ,PQ, 32 2 45 2 54 3 55 3 65 2 1/2" 3 76 3" 3 89 3 1/2" 3 92 ...
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