... simple and rapid Highspeed fence board is made up of uncoiler ,leveling machine ,punching machine ,forming machine ,shearing machine,hydraulic pressure station ,the PLC ... into the unit guide wheel;(2)The whole flat for three rollers on the four roll, molding shaft diameter ... 45 # through the quenching and tempering treatment), roll materials for GCR15, quenching HRC58 ° to 62 °, the surface hard ...