Because the Bird's Nest is different from other buildings, the rickety column structure, the intersection line is very complex, and the requirement and difficulty of welding technology are very high  The welders who have been trained to select the best not only completed the task on time and efficiently, but also engraved their names on the edge of each weld in the Bird's Nest
In the words of managers, let countless ordinary welders leave their own trace in this high-profile Olympic project-the public may not have a chance to see it, but it will never go away
It is a warm move to ask the builder to leave his name.