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Cangzhou Great Drill Bits Co.,Ltd. REQUETS A QUOTE
Cangzhou Great Drill Bits Co.,Ltd.
Quality Control

Quality Control

Firstly, we strictly choosing our raw material supplier. Every roller bit and legs of tricone bit, PDC bit body of GREAT have the quality test report table to record the product test parameters during manufacturing. For controlling the quality strictly and tracing the working condition of bits.

And has its own tracking card from raw material to finish.


According to the manufacturing standard the quality department tests every process strictly and carefully.