type of single face machine:SF-320S type of corrugated roller:(U/V)A,C,B,E Width ... than HRC58-62.- Independent gear box, gimbal axis, oil immersed type lubricating to reduce noise, keep running stable, corrugated machine laminating ... paper width.- With pre-heater for steam spray device for medium paper.- With frequency converter to make stepless speed regulation, single facer line.