Section 10 Pulp of wood or of other fibrous cellulosic material; recovered (waste and scrap) paper or paperboard; paper and paperboard and articles thereof 48 Paper or paperboard; articles of paper pulp, of paper or of paperboard 48 04 Uncoated kraft paper and paperboard, in rolls or sheets, other than that of heading 48.02 or 48.03. Commodity Code Description 48 04 11 Unbleached 48 04 19 Other 48 04 21 Unbleached 48 04 29 Other 48 04 31 Unbleached 48 04 39 Other 48 04 41 Unbleached 48 04 42 bleached uniformally throughout the mass...,consists of wood fibres.., by a chemical.. 48 04 49 Other 48 04 51 Unbleached 48 04 52 Bleached uniformally...., consists of wood obtained by a chemical process 48 04 59 Other