Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 40.01 with any product of this heading, in primary forms or in plates, sheets or strip › Isobutene-isoprene (butyl) rubber (IIR); halo-isobutene-isoprene rubber (CIIR or BIIR)
400231Subheading
400231 — Isobutene-isoprene (butyl) rubber (IIR):
Cao su isobuten-isopren (butyl) (IIR):
Codes under heading 400231
Data updated: 29/07/2026 · Found wrong or missing data? Report an issue for this code →