4001 Natural Rubber, Balata, Gutta-percha, Guayule, Chicle and Similar Natural Gums, in Primary Forms or in Plates, Sheets or Strip

4001 (01/1988-..) Natural Rubber, Balata, Gutta-percha, Guayule, Chicle and Similar Natural Gums, in Primary Forms or in Plates, Sheets or Strip 40011000 (01/1988-..) Natural Rubber Latex, Whether or not Prevulcanised 40012100 (01/1988-..) Smoked Sheets of Natural Rubber 40012200 (01/1988-..) Technically Specified Natural Rubber `tsnr` 40012900 (01/1999-..) Natural Rubber in Primary Forms or in Plates, Sheets or Strip (Excl. Smoked Sheets, Technically Specified Natural Rubber `tsnr` and Natural Rubber Latex, Whether or not Prevulcanised) 40012910 (01/1988-12/1998) Natural Rubber in Crepe Form 'crepe Sheets' 40012990 (01/1988-12/1998) Natural Rubber in Primary Forms or in Plates, Sheets or Strip (Excl. Smoked Sheets, Tsnr, Crepe Sheets and Natural Rubber Latex, Whether or not Prevulcanized) 40013000 (01/1988-..) Balata, Gutta-percha, Guayule, Chicle and Similar Natural Gums, in Primary Forms or in Plates, Sheets or Strip (Excl. Natural Rubber, Whether or not Prevulcanised)