zuanlongbits@gmail.com

+86-029-82612068

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Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

PDC Non Coring Drill Bit For Geological Exploration / Coal Mining / Water Conservancy

PDC Non Coring Drill Bit For Geological Exploration / Coal Mining / Water Conservancy

The four wings normal type concave drill bits suits for f<=10, the reinforced type suites for f<=15

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