End prebending of High precision High accurate end pre-bending when bending the end,it bending and the length of the edge.top roller presses down,and high accurate end pre-bending is done under acertainpressure. Excellent product precision products have superior precision due to continuousbending and highaccurate end pre-bending,products have superior precision.As the top poller is in the shape of drum,with the supporting roller adjudted,it can coil ideal products in the wide range from sheets to plates. NC Control High Production Effciency One operator,simple operation,and high effciency. Different Uses With Coordinating Controlling Methods There are following controlling methods accrding to its use: TNC(Top NC):For many types but small quantity of production T&BNC(Top NC):For few types but large quantity of production. CNC(CNC):For many types but large quantity of production. Rich Bending Shapes There are such different shapes as O shape,U shape and multi-section shape,The method is as follows: O bending:Back bending mode U bending:Front bending mode Special bending:composition mode