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
4002.31 — Isobutene-isoprene (butyl) rubber (IIR):
Cao su isobuten-isopren (butyl) (IIR):
Hồ sơ mã HS — hscodevn.com/hs/400231 · in ngày 15/9/2026 · chỉ mang tính tham khảo, đối chiếu văn bản pháp lý hiện hành
Codes under heading 400231
Distinguish from heading:4005Compounded rubber, unvulcanised…
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