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Hebei Yichuan Drilling Equipment Manufacturing Co., Ltd

Province/State:hebei

Country/Region:china

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8 1/2 inch IADC 637 Roller cone drill bit suitable for hole opener used for HDD engineering

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7 1/2inch roller cones for core barrel, foundation piling bit Picture Size IADC Color WOB (Weight On Bit) RPM Formation 8 1/2inch 215.9mm 637 Blue, ...

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pcd drill bit hdd drill rod sds max hammer drill bit

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