Harmonized System
Section XIII > Chapter 69 > Heading 6902 > 6902.20
… of silica (SiO2) or of a mixture or compound of these products …
Section VI > Chapter 28 > Heading 2844 > 2844.10
… compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural …
Section VI > Chapter 29 > Heading 2922 > 2922.3
… other than those containing more than one kind of oxygen function; salts thereof …
Section IX > Chapter 44 > Heading 4403 > 4403.2 > 4403.23
… spp.) and spruce (Picea spp.), of which the smallest cross-sectional dimension is 15 cm or more …
Section XVII > Chapter 87 > Heading 8704 > 8704.4
… combustion piston engine (diesel or semi-diesel) and electric motor as motors for propulsion …
Section XIII > Chapter 69 > Heading 6903
… Other refractory ceramic goods (for example, retorts, crucibles, …
Explanatory notes
… 69.03 - Other refractory ceramic goods (for example, retorts, crucibles, … These articles include : (1) Articles which, unlike the refractory products of heading 69.02 , are in many cases not permanent fixtures, such as retorts, reaction vessels, crucibles, cupels and similar articles for …Section XVII > Chapter 86 > Heading 8608
… tramway track fixtures and fittings; mechanical (including electro-mechanical) signalling, safety or traffic control …