... brown craft paper, coated paper, art paper, duplex or triplex corrugated cardboard in food grade;E-Flute C-Flute and B-Flute ... single or double wall corrugated cardboard in food grade;2.Dimensions: 4',5",6",7",8 ... ",18",20",24",28" or Customized Available;3. Hardness: Strong corrugated cardboard or Customized Available;4. Design: Various Design fit to different ...