… Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets …
Explanatory notes
… ‑ Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets … by rubber trees and, in particular, by the species Hevea brasiliensis . This liquid consists of an aqueous solution … of high molecular weight). This part includes : (1) Stabilised or concentrated natural rubber latex . Rubber …