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 paperboard 48 19 Cartons, boxes,etc; box files, letter trays,etc,of paper, paperboard, etc used in office 48 19 50 Other packing containers, including record sleeves Commodity Code Description 48 19 50 00 Other packing containers, including record sleeves