… paperboard, corrugated (with or without glued flat surface sheets), creped, crinkled, embossed or perforated, in rolls or sheets, other than paper of the kind described in …
Explanatory notes
… paperboard, corrugated (with or without glued flat surface sheets), creped, crinkled, embossed or perforated, in rolls … flat or of uniform surface. For the dimensions of the products of this heading, see Note 8 to this Chapter. The … and paperboard . Corrugated paper and paperboard results from processing the material through grooved rollers …