... face machine:SF-320S type of corrugated roller:(U/V)A,C,B,E Width ... roll, gap is electric adjusted, PLC auto adjusting is optional.- Open-close of corrugated roll, pressure roll & glue applicator device are pneumatic ... , hardness is more than HRC58-62.- Independent gear box, gimbal axis, oil immersed type lubricating to reduce noise, keep running stable, corrugated ...