3912: Cellulose, chemical derivatives nes in primary forms

391210: Cellulose acetates 391211: Cellulose acetates, non-plasticised, in primary forms 391212: Cellulose acetates, plasticised, in primary forms 391220: Cellulose nitrates, collodions, in primary forms 391231: Carboxymethylcellulose, salts, in primary forms 391239: Cellulose ethers nes, in primary forms 391290: Cellulose derivatives nes, in primary forms 3912: Cellulose, chemical derivatives nes in primary forms