CANGZHOU GREAT DRILL BITS CO., LTD.
Great Group, established in 1998, is a professional manufacturer specializing in the R&D, design, production, and sales of petraleum equipment. Its core focus is on the research and manufacturing of PDC bit, roller cone bits, downhole motors and other drilling tools. The company is a certified suplier for CNPC, Sinopec, and CNOOC. Its production base is located in the Hejlan Provincial-Level Development Zone in Hebei, covering an area of ??86,000 square meters, can produce a wide range of specifications of PDC bits, roller cone bits, roller cutters, core bits, Bi-center bits, downhole motor, PDC reamers, PDC hole openers. Micro reamers, torque impact tools, roller cutters, raise pipe and other special tools.
