37340LeafLevel 5
Unfired refractory products; other refractory ceramic goods
**Includes:** This subclass is defined through the following headings/subheadings of the HS 2012: 6815.91, 6903.
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/api/v1/systems/cpc_v21/nodes/37340Cross-system equivalences5
HS 2022
681591Stone articles and articles of other mineral substances; containing magnesite, magnesia in the form of periclase, dolomite including in the form of dolime, or chromitepartial690310Refractory ceramic goods; containing, by weight, more than 50% of free carbon, excluding those of siliceous fossil meals or similar earthspartial690320Refractory ceramic goods; containing by weight more than 50% of alumina or of a mixture or compound of alumina and of silica, excluding those of siliceous fossil meals or similar earthspartial690390Refractory ceramic goods; composition of which n.e.c. in heading no. 6903, other than those of siliceous fossil meals or similar earthspartial