Hwan-gyo Jung

2 Patents

• US121881052025

  Steel Material for Welding Steel Pipe Having Excellent Low-temperature Toughness, Steel Material That Has Undergone Weld Heat Treatment, and Method for Manufacturing Same

  POSCO CO., Ltd

  0 cites
• US116395352023

  Steel Material for Welded Steel Pipe, Having Excellent Longitudinal Uniform Elongation, Manufacturing Method Therefor, and Steel Pipe Using Same

  POSCO CO., Ltd

  0 cites