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Hebei Yichuan Drilling Equipment Manufacturing Co., Ltd

Province/State:hebei

Country/Region:china

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190MM Steel Tooth Hard Rock Drill Bits , 7 1/2 Inch Water Well Drilling Tools

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China Supplier Water well drilling tools 7 1/2inch 190mm steel tooth tricone drill bit for well drilling Commodity Size IADC Thread Connection WOB ...

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well drill bit 28mm drill bit for steel rock drilling tools

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