… crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than …
Explanatory notes
… crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than … rollers, blanks, forming tools, and pots; etc. (2) Tubing, piping (including runways in the form of …