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Section XIII — Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware

Subheading

690320

Containing by weight more than 50% of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)

Common commodities
High-alumina firebricksAlumino-silicate cruciblesMullite heat resistant tilesCorundum refractory rodsAluminous ceramic insulatorsRefractory alumina bricksSintered mullite shapesHigh-alumina monolithic productsAlumina refractory tubesAluminous fireclay items

HS codes