Fig. 2From: Difficulty of internal bond prediction of particleboard using the density profilea A density profile specimen, No. 41 specimen A, was randomly selected as a representative density profile. b Identification of the LL1–RL1 and gross densities in the density profile. The L10 density is the gross density of specimens A and B. c Identification of the L1–L9 and gross densities in the density profileBack to article page