Guohua Zheng

4 Patents

• USD10888262025

  Wire Spool Gun

  Shenzhen Unitweld Welding And Motor Co., Ltd.

  0 cites
• USD10813032025

  Welding Torch Handle

  0 cites
• USD10762372025

  Welding Helmet

  0 cites
• US122204632025

  Quaternary Ammonium Cyclodextrin and Preparation Method and Uses Thereof, and Silver Nanoparticle-cyclodextrin Complex and Preparation Method and Uses Thereof

  Hubei University Of Chinese Medicine

  0 cites