摘要 |
Disclosed are a molten Zn alloy plated steel tube, and a method to manufacture the same. According to an aspect of the present invention, provided is the molten Zn alloy plated steel tube manufactured by pipe welding a steel plate on which a molten Zn alloy plated layer is formed, wherein an external surface bead width of a welded part formed by the pipe welding is equal to or less than 1 mm (excluding 0 mm). |