Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms

391390Subheading

3913.90 — Other:

Loại khác:

Distinguish from heading:3916Monofilament of which any…1301Lac; natural gums, resins…1302Vegetable saps and extracts…1518Animal, vegetable or microbial…3001Glands and other organs for…3505Dextrins and other modified…

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