Tricone Bit, Drill Bit, PDC Bit manufacturer / supplier in China, offering 250.8mm (9 7/8 in) IADC 715 Tricone Bit TCI -API Factory, 6" (152.4mm) Steel Body PDC Bit API Manufacture, Diamond Bit for Well Drilling 9 Inch 8-1/2 Inch PDC Bit Mining Drilling Bit and so on.
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