Ion-exchange resin comprising sodium salts of sulfonated poly(divinylbenzene-co-ethylstyrene-co-styrene) (CAS No. 69011-22-9) (provided for in subheading 3914.00.60) — Ethylene-vinyl acetate copolymers (other than those in aqueous dispersions), containing 50 percent or more by weight of vinyl acetate monomer (CAS No. 24937-78-8) (provided for in subheading 3905.29.00)
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