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Axial force balance structure of high-pressure cantilever centrifugal pump

Axial force balance structure of high-pressure cantilever centrifugal pump

Low-leakage sealing structure for valve

Low-leakage sealing structure for valve

Large-diameter plug valve for acetic acid device

Large-diameter plug valve for acetic acid device

Oil and gas pipeline tensile testing machine

Oil and gas pipeline tensile testing machine

Support adjustment device for oil and gas pipeline test

Support adjustment device for oil and gas pipeline test

H-type automatic recirculation control valve

H-type automatic recirculation control valve

Valve plug and plug valve for plug valve

Valve plug and plug valve for plug valve

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