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How to choose the connection method between valves and pipes? 2025-08-16 How to choose the connectio… 2025-08-16 The Changqing Heshui Oilfield Accelerates the Profitable Development of Tight Oil 2025-08-08 The Changqing Heshui Oilfie… 2025-08-08 A brief introduction to the main working principle of electric ball valves 2025-08-01 A brief introduction to the… 2025-08-01 Tuha Oilfield: Accelerate Technological Innovation to Reduce Drilling and Fracturing Costs 2025-07-25 Tuha Oilfield: Accelerate T… 2025-07-25 Problems and Solutions for Pre-Operation Maintenance of Ball Valves 2025-07-18 Problems and Solutions for … 2025-07-18 Efficient Production Enhancement of Coalbed Methane in Huabei Oilfield 2025-07-11 Efficient Production Enhanc… 2025-07-11 Jilin Oilfields "Digital Sentinel" Safeguards Oil and Gas Production 2025-07-04 Jilin Oilfields "Digit… 2025-07-04 The handling methods for faults in control valves 2025-06-07 The handling methods for fa… 2025-06-07 
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