Square Steel Tube

There is a hollow cross section whose length is much greater than its diameter or circumference.
According to the shape of the section, it is divided into round, square, rectangle and special-shaped steel tubes.
H-U VN carbon structural steel welded steel tubes are used for engineering construction、machinery manufacturing
It is also an economical steel，The steel tubes can be used to the building structure grid support and mechanical support, which can reduce the weight，Save metal materials 20~40%,
And can realize factory mechanization manufacturing.
Using steel tubes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of protective coating and save investment and maintenance cost