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8 1/2 Inch Hard Rock Drill Bits Piling Work Roller Cone Cutter CE Certification

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Hebei Yichuan Drilling Equipment Manufacturing Co., Ltd

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8 1/2 Inch Hard Rock Drill Bits Piling Work Roller Cone Cutter CE Certification

Contact Now

8 1/2 Inch Hard Rock Drill Bits Piling Work Roller Cone Cutter CE Certification

8 1/2inch roller cone cutter High quality cone cutters tricone plam bit for piling Commodity Size IADC color WOB (Weight On Bit) RPM Formation 8 1/2inch 215.9mm 617 blue yellow Red 19684~53428lbs 87.5...

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single cone drill bit

roller cone bit

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