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6 inch 152 mm 5 blades reinforced body pdc drill bit pdc bits

PDC Bits for Well Drilling, 6" Diamond PDC 5 Blades, 6" Diamond PDC Bit manufacturer / supplier in China, offering 4 Blades 6 Inch 152mm PDC Bit /Diamond Drill Bit for Water Well Drilling, Wireline Core Barrel of Gbs Large Diameter in Geotechnical, T2-76/86/101/116 …

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