Guo Tie Long

4 Patents

• US123449392025

  SUS Surface Treatment Method

  DONGGUAN DSP TECHNOLOGY CO., Ltd.

  0 cites
• US123314222025

  Titanium Surface Treatment Method

  DONGGUAN DSP TECHNOLOGY CO., Ltd.

  0 cites
• US117955652023

  Surface Treatment Method of Copper for the Assembly of Polymer and Copper

  DONGGUAN DSP TECHNOLOGY CO., Ltd.

  0 cites
• US116189522023

  Surface Treatment Method of Magnesium for the Assembly of Polymer and Magnesium

  DONGGUAN DSP TECHNOLOGY CO., Ltd.

  0 cites