The 4 sides beam welding machine can weld the box beam, P shaped beam, step beam, and customized beams.  This model is suitable for welding the beams which requirements to welding four lines of each end. The four welders operate simultaneously to complete the work at once, it is high efficiency. We adopte the high-quality components, the machine has a very long life. If you have any interest in this machine, please feel free to contact us!