Natural rubber, balata, gutta-percha, guayule, chicle and similar gums; in primary forms or in plates, sheets or strip

400110 Rubber; natural rubber latex, whether or not pre-vulcanised, in primary forms or in plates, sheets or strip 400121 Rubber; natural (excluding latex), in smoked sheets 400122 Rubber; technically specified natural rubber (TSNR), in primary forms or in plates, sheets or strip (excluding latex and smoked sheets) 400129 Rubber; natural (excluding latex, technically specified natural rubber and smoked sheets), in primary forms or in plates, sheets or strip 400130 Balata, gutta-percha, guayule, chicle and similar natural gums; in primary forms or in plates, sheets or strip