A Welder (GTAW + SMAW) - Carbon Steel (CS) joins metal components using TIG (GTAW) for root passes and Stick (SMAW) for filler/cap passes, primarily in heavy industry or oil & gas projects. Qualified in 6G/6GR positions, they weld carbon steel pipe/plates per ASME Sec IX, ensuring high-quality, high-pressure, leak-proof joints.