This equipment is two kinds of mechanical and hydraulic pressure that it can roll and bend various sections such as flat steel, U-Steel, round pipe or other abnormal materials to a certain curvature of round, arc and spiral type. It is a kind of barrel-rolling device with high quality and high efficiency. It changed original flange producing process with many advantages of reasonable structure, small volume, low energy consumption, high efficient, low noise fast handling as well as easy use and simple operation and multi purposes etc. The machine filled up domestic gaps, changed traditional iron plate cutting mode, save costs and improve efficient, it can order different models according to users’ requirements. It is widely used in petroleum, chemical, hydroelectric, ship building, valve, pipeline and mechanical manufacture etc. industries.http://www.bending-machine-china.com/pid11462045/Large+vertical+rolling+flange+machine.htm