Section XIII — Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware
Heading
6903
Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths and rods), other than those of siliceous fossil meals or of similar siliceous earths.
Common commodities
Kiln support rodsHeat-resistant cruciblesIngot mould tubesThermal insulation pipesRefractory muffles for glass manufacturingCeramic retort sheathsHigh-temperature cupelsFoundry nozzle rodsRefractory plug supportsSintered ceramic pipes