Arc aluminum square tube is divided into bottom arc and side arc, arc aluminum square tube production process is more complex, commonly used is the stretching and bending method, material loss, welding products are easy to deformation, the cost is much higher than the stretching and bending method. The shape decoration design of arc aluminum fsquare tube is diverse, whether it is arc aluminum square tube or modeling aluminum square tube. In order to make the decoration effect of arc aluminum square tube good, it is recommended to use aluminum profile aluminum square tube.