PDC Drill Bit, Tricone Bit, PDC Oil Drill Bit manufacturer / supplier in China, offering Shock Resistance 19.05mm Polycrystalline Diamond Compact for Coal Drilling, Toughness 13.44mm Polycrystalline Diamond Compact for Hard Complex Strata, 13.44mm Polycrystalline Diamond Compact for Conventional Geological Drilling and so on.
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