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Cross section of the corrugated board along the wave: (a) the reference SW sample—no offset; (b) SW sample—offset equal to 1/16 P; (c) SW sample—offset equal to 2/16 P; (d) SW sample—offset equal to 3/16 P; (e) SW sample—offset equal to 4/16 P; (f) the reference DW sample—no offset; (g) DW sample—offset equal to 1/16 P; (h) DW sample—offset equal to 2/16 P; (i) DW sample—offset equal to 3/16 P; (j) DW sample—offset equal to 4/16 P.
