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Method for grinding sealing surface of valve body of helium isolation valve
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Valve rod anti-flying structure of small-caliber ball valve
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Variable load device for testing actuating mechanism
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High-temperature explosion venting valve
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Butterfly valve disk seat sweeps structure
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Cryogenic axial flow check valve with online maintenance function
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CFD simulation-based valve flow coefficient convenient calculation method
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Technological method of cryogenic axial flow check valve with online maintenance function
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Limit butterfly valve structure with any angle
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Six-freedom-degree full-floating butterfly valve structure
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Bearing structure for preventing high-temperature blocking
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Limit indication structure of slow-closing check valve
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Butterfly plate structure for reducing torque of large-diameter butterfly valve
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High-temperature helium-level sealing isolation valve for nuclear power station
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Five-section ball valve capable of being detached online
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Pipeline welding detection device
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