PDC Drill Bits, Machine Spare Part, Tricone Drill Bit manufacturer / supplier in China, offering Three Wing Reinforced PDC Non-Coring Bit for Hard Rock Borehole, Customizable Colors 14 Teeth Diameter 153 mm PDC Combined Tooth Coring Bit, Mine Blasting Quarry Carbide Bit Cone Drill Bit Quarry Mining and so on.
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