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Statistical classifications
NC 2023 (ca)
Subitem
281122 — Diòxid de silici
Descendants
Code
Description
28112200
Diòxid de silici
Correspondence with
NC 2022 (ca)
Code
Description
281122
Diòxid de silici
Correspondence with
NC 2024 (ca)
Code
Description
281122
Diòxid de silici