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The Fourth Drilling Company…
On August 25th, it was learned that the Gao166-77 well, drilled by the Fourth Drilling …
2025-09-05
Jilin Oilfields Closed Core…
Since the beginning of this year, Daqing Petrochemical Company has been adjusting the…
2025-08-29
The causes of leakage at th…
The sealing surface of a valve is its core component. The leakage forms of the sealing …
2025-08-22
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