Section XIII — Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware
Chapter 69 — Ceramic products
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.
Subheading 6903.90 — Other
HS code
6903.90.90 Other refractory articles, nes
Last Verified Date - 1 October 2026
Common commodities
Zirconia high-temperature mufflesMagnesia refractory tubes for heat useCeramic nozzles with 50% or less carbonHeat-resistant zirconia plugsRefractory ceramic sheaths (nes)Magnesia supports for high temperaturesHigh-temperature zirconia pipesCeramic rods with low alumina contentRefractory ceramic pipe supportsHeat-resistant magnesia nozzles