Baldosas cerámicas extruidas con baja absorción de agua. (E menor o igual 3%) - Grupo A I.
EXTRUDED CERAMIC TILES WITH LOW WATER ABSORTION (E < 3%) - GROUP AL
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91.100.23 / Ceramic tiles
CTN 138 - Ceramic tiles
EN 121:1991 (Identical)
It is cancelled by: UNE-EN 14411:2004