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Jilin Oilfields Closed Core Sampling Guides the Potential…
Jilin Oilfields Closed Core Sampling Guides the…
2025-08-29
Since the beginning of this year, Daqing Petrochemical Company has been adjusting the material flow in the oil refining area …
The causes of leakage at the valve sealing surf…
2025-08-22
The sealing surface of a valve is its core component. The leakage forms of the sealing surface can generally be classified into…
How to choose the connection method between val…
2025-08-16