Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 69 Ceramic products 69 02 Refractory bricks,...,& similar construction goods (excl.siliceous fossil meal orearth) Commodity Code Description 69 02 10 Containing by weight,singly or together,more than 50% of the elements Mg,Ca or Cr,...... 69 02 20 Containing by weight more than 50% of alumina (AL2O3),of silica (SiO2) or of a ......... 69 02 90 Other
