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Zenghua He

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  • Shanghai, CN
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Patents Applicationslast 30 patents

  • Information Patent Application

    BRACKET USED FOR BALL VALVE AND TRUNNION BALL VALVE
    • Publication number 20160281877
    • Publication date Sep 29, 2016
    • Zenghua He
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Floating Ball Valve
    • Publication number 20150300509
    • Publication date Oct 22, 2015
    • Zenghua He
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Valve Seat for Floating Ball Valve
    • Publication number 20150300508
    • Publication date Oct 22, 2015
    • Zenghua He
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...