... ply,5 ply, 7 ply corrugated cardboard production line.carton packaging machine. carton packaging machine Characteristics:1. Applied to mid and high speed production ... between glue roller and doctor roller, by electyomotion or Automatic.A.Electromotion: Press the button that controls motor to adjust the ... : 1200mm,1400mm,1800mm,2000mm,2200mm,2500mm,2800mm.3. Flute Type: A, B, C, E, F, BC.