Here, as a welder, Dong-ryeol endures difficult tasks well. Director Park and Dong-ryeol are half-brothers, living in the midst of conflicting interests and conflicts. The anecdote unfolds such as the wisdom and wisdom of Jiang Kang, who has lived with iron for 40 years, the fighting spirit and perseverance of director Park, who leads the front line, and Chairman Chung, the group's head, who encourages the president suffering from occupational diseases. is made One day, when a strong wind blows,...