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Statistical classifications
NC 2015 (ca)
Subitem
281122 — Diòxid de silici
Descendants
Code
Description
28112200
Diòxid de silici
Correspondence with
NC 2014 (ca)
Code
Description
281122
Diòxid de silici
Correspondence with
NC 2016 (ca)
Code
Description
281122
Diòxid de silici