Explanatory notes
… the expression “rubber” means the following products, whether or not vulcanised or hard : natural rubber, balata, … gutta‑percha, guayule, chicle and similar natural gums, synthetic rubber, factice derived from oils, and such … (printed, embossed, grooved, channelled, ribbed, etc.) or simply cut to rectangular (including square) shape, …Legal note
… the expression “rubber” means the following products, whether or not vulcanised or hard : natural rubber, balata, … gutta‑percha, guayule, chicle and similar natural gums, synthetic rubber, factice derived from oils, and such … into non‑thermoplastic substances which, at a temperature between 18 °C and 29 °C, will not break on being extended to …