Tariff List

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.
6903.10.00   -    Containing by weight more than 50% of graphite or other carbon or of a mixture of these products
6903.20.00    -    Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)
6903.90.00   - Other