The flutes of corrugated paper includes:
AB Flute- 5 layers. thickness is 8mm
BE Flute-5 layers, thickness is 5mm
A flute-3 layers, thickness is 5mm
C Flute-3 layers, thickness is 4mm
B Flute-3 layers, thickness is 3mm
E Flute-3 layers, thickness is 2mm
F Flute-3 ayers, thickness is 1mm