1\ High precision end pre-bending The straightedge length can be set freely, the upper roller press to pre-bend. 2\ NC ccontrol, high productivity Parameters are controlled by NC, easy for operation, improve the productivity greatly. 3\ Good accuracy The upper roller is like a drum, the lower rollers assorted with it through support rollers. Bend condinuously, can roll ideal products from thin to thick plates widely. 4\ Safety The lower rollers are fixed, the upper roller move vertically amd horizontally. The job does not move with the working rollers. 5\ Complete structure, simple foundation, convenient move The machine has unitary basement, does not need earth bolts, has simple foundation, can move conveniently. 6\ Plenty of bendig shapes Can roll shapes of O, U, several R, taper in certain range. Roll O shape: back side roll way Roll U shape: front side roll way Roll several R shapes: combined way