... of 522-F Flat Knitting Machine Gauge6,7,8,10,12,14, 3.5.7multi gaugeKnitting width:48 inch,52 inch,56 ... electric magnet to select needle feelyThe knitting system is single machine head, two systemsRoller: The roller device is controlled by torque ... motor. Main roller and sub roller can open and close automaticallyHas 12 pieces flank tension in each right ...