… Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, …
Explanatory notes
… - Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, … - Other This heading covers all refractory goods not specified or included in the preceding headings. These … of this subheading the term “free carbon” applies to carbon species such as graphite, amorphous carbon (carbon black) …