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Drilling Fields
2021-07-17
Video of HDD hole opener, totally drilled 1600 meters.
Feedback of piling core barrel
2021-07-17
Video of roller cone bit on piling core barrel, satisfied test result.
How to operate core barrel on rotary drilling rigs
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No.319-324, F1, Shoulashou Int'l. Autoparts Center,Shijing Road,Hejian City, Hebei Province, China