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20111130 — Gasos nobles, excepte l'argó

    Descendants
    Code Description
    2011113003 Gasos nobles, excepte l'argó
    Correspondence with PRODCOM-EIP 2017 (ca)
    Code Description
    20111130 Gasos nobles, excepte l'argó
    Correspondence with PRODCOM-EIP 2019 (ca)
    Code Description
    20111140 Heli
    20111190 Gasos nobles (excepte argó i heli); neó, criptó i xenó
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