… (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide …
Explanatory notes
… (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide … heading 69.02 , are in many cases not permanent fixtures, such as retorts, reaction vessels, crucibles, cupels and …