6909190070
- Ceramic wares for laboratory, chemical or other technical uses; ceramic troughs, tubs and similar receptacles of a kind used in agriculture; ceramic pots, jars and similar articles of a kind used for the conveyance or packing of goods
- Ceramic wares for laboratory, chemical or other technical uses
- Other
- Supports for catalysts or filters, consisting of porous ceramics made primarily from oxides of aluminium and titanium; with a total volume of not more than 65 litres and at least one duct (open on one or both ends) per cm$2 of cross section