... simple and rapid Highspeed fence board is made up of uncoiler ,leveling machine ,punching machine ... whole flat for three rollers on the four roll, molding shaft diameter Φ 80 mm (material ... 45 # through the quenching and tempering treatment), roll materials for GCR15, quenching HRC58 ° to 62 °, ... 40 mm ,square tube welding (up and down adjustable)(2)Want to install on sliding roundSpecification ...