Section VII — Plastics and articles thereof; rubber and articles thereof
Heading
3914
Ionexchangers based on polymers of headings 39.01 to 39.13, in primary forms.
Common commodities
Cross-linked styrene divinylbenzene copolymer anion exchangerCationic acrylic polymer for water demineralizationAcidic ion-exchange resin beads for water softeningDI resin granules for deionization processesBasic polystyrene cation exchanger for chemical separationWater treatment acrylic polymer beadsCross-linked anionic resin powder for purificationCation exchange resin in primary form for industrial usesDemineralization media made from cross-linked polystyreneAnion exchanger resin beads for hard water treatment