Billboard lower opening curved bracket

1. Folding method: fold the steel plate to be welded in an arc, or use a bending machine to bend it into an arc, and then fold the arc-shaped steel plate Turn both ends over, fix with clamps and then weld.
2. Hot pre ssing method, the flat steel plate is heated and compre ssed to form an arc, and then welded and fixed. This method requires the use of professional equipment and tools, which can improve the accuracy of the arc and the welding efficiency to a certain extent. quality.
3. Arc rolling method. The steel plate is arc-rolled by a professional arc-rolling machine to form a smooth arc surface, and then the arc-rolled steel plate is welded and fixed.

At about 10:00 on March 9, in Zibo Commercial Building, a man suddenly climbed over the railing from the 6th floor of the mall and jumped to his death. In addition to the observation deck at the stairs, there is another arc-shaped observation deck on this floor. There is only a doorway about 1 meter wide that can lead to the outside world. Currently, this place has been blocked by three yellow warning signs of "Service Suspended". Block. Except for these two observation decks, the rest of the 6th floor is blocked by large billboards.
The man who jumped from the building is a patient with depre ssion. We don’t know why he jumped from the building in the shopping mall. It is said that he jumped over the railing from the observation deck at the top of the stairs. Fortunately, no other customers were hit and no further injuries were caused.