الوصف

Cangzhou Great Drill Bit Co.,Ltd was founded in ***0, and the company is located in Hejian Development Zone, Hebei Province.We have multiple international advanced CNC machining center production lines with combined turning and milling and multi-axis linkage. Cumulative sales of more than **0,**0 drill bits.Main products: PDC bit, tricone bit, coring bit, bi-center bit, Torkbuster ， PDC reamer, PDC hole opener, rock reamer, customized cutters.
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