introduce product:three wings pdc drag bit
The characteristics of the three wings pdc bit:
Our PDC drill bits are widely used in all industries, such as coal mining, oil exploration, geological exploration, water and hydroelectric, railway and road, tunneling construction and so on.
date_rangeOct 27' 2018 / China
date_rangeOct 25' 2018 / China
date_rangeOct 24' 2018 / China
date_rangeOct 22' 2018 / China