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Hebei Yichuan Drilling Equipment Manufacturing Co., Ltd

Province/State:hebei

Country/Region:china

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8 1/2inch Drilling Core Barrel With Roller Bits Cutters For Piling, Large Diameter Roller Bits Cutters

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8 1/2inch Drilling Core Barrel With Roller Bits cutters For Piling, Large Diameter Roller Bits cutters Commodity Size IADC color WOB (Weight On Bit) ...

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rotary drilling tool roller cone drill bit rotary drilling tools

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