... flutes needs different pairs of corrugating rollers to make.Flute Type: UV, flutes A,B, C ,BC,D,E ... of them can be selected by Clients. Flute, H= mm; Flute, H= mm; Diameter of the corrugated Roller is Φ260mm ... (electro-motion). Glue trough might be made of stainless steel, driven up and down by pneumatic, easy to clean ... a high speed. 3 Layer Corrugated Cardboard production Line SINGLE FACER(vacuum type)