Harmonized System
Section IX > Chapter 44 > Heading 4418 > 4418.30
… Posts and beams other than products of subheadings 4418.81 to 4418.89 …
Classification opinions
… (softwood) boards used as structural studs in the framing of a house, consisting of rectangular pieces of … ends. There are drilled holes, 2.54 cm (one inch) in diameter, centred about 40.64 cm (16 inches) from each end …Section VI > Chapter 29 > Heading 2924
… Carboxyamide-function compounds; amide-function compounds of carbonic acid. …
Explanatory notes
… 29.24 - Carboxyamide-function compounds; amide-function compounds of carbonic acid. - Acyclic amides (including acyclic carbamates) and their derivatives; …Section XVI > Chapter 84 > Heading 8456
… by removal of material, by laser or other light or photon beam, ultrasonic, electro-discharge, electro-chemical, electron beam, ionic-beam or plasma arc processes; water-jet cutting …
Explanatory notes
… by removal of material, by laser or other light or photon beam, ultrasonic, electro‑discharge, electro‑chemical, … for dry-etching patterns on semiconductor materials. Examples of the foregoing products are (1) laser-beam … which cut semiconductor chips or which cut or drill ceramic substrates for integrated circuits. (A) …Section XIII > Chapter 69 > Heading 6909
… Ceramic wares for laboratory, chemical or other technical uses; ceramic troughs, tubs and similar receptacles of a kind used …
Explanatory notes
… 69.09 - Ceramic wares for laboratory, chemical or other technical … a range of very varied articles usually made from vitrified ceramics (stoneware, porcelain or china, steatite ceramics, … fall at 9 or above on the Mohs scale. To distinguish among harder materials, the Mohs scale is sometimes …Section II > Chapter 13 > Heading 1301
… Lac; natural gums, resins, gum-resins and oleoresins (for example, balsams). …
Explanatory notes
… the gum. It takes the form of thin, vitreous flakes, amber ‑ coloured or reddish. A similar product in the shape … mastic; elemi; sandarac; dragon’s blood. (4) Gamboge; gum ammoniac; asafoetida; scammony; euphorbia; galbanum; …Section VI > Chapter 32 > Heading 3207
… prepared opacifiers and prepared colours, vitrifiable enamels and glazes, engobes (slips), liquid lustres and similar preparations, of a kind used in the ceramic, enamelling or glass industry; glass frit and other glass, in …
Explanatory notes
… prepared opacifiers and prepared colours, vitrifiable enamels and glazes, engobes (slips), liquid lustres and similar preparations, of a kind used in the ceramic, enamelling or glass industry; glass frit and other glass, in …Section VI > Chapter 28 > Heading 2852
… of mercury, whether or not chemically defined, excluding amalgams. …
Explanatory notes
… of mercury, whether or not chemically defined, excluding amalgams. 2852.10 ‑ Chemically defined 2852.90 ‑ Other This … powder ( red oxide ) or as a denser orange-yellow amorphous powder ( yellow oxide ). These oxides are toxic … paints. (12) Double or complex salts. (a) Chloride of ammonium with mercury (ammonium mercuric chloride or …Section XIII > Chapter 69
… Ceramic products …
Explanatory notes
… Chapter 69 Ceramic products Notes. 1.- This Chapter applies only to … of heading 68.04; (c) Articles of Chapter 71 (for example, imitation jewellery); (d) Cermets of … used directly in powder form with the addition of a small amount of lubricant. In most cases, however, it is first …Legal note
… Notes. 1.- This Chapter applies only to ceramic products which have been fired after shaping : … of heading 68.04; (c) Articles of Chapter 71 (for example, imitation jewellery); (d) Cermets of …Section VI > Chapter 29 > Heading 2923
… Quaternary ammonium salts and hydroxides; lecithins and other …
Explanatory notes
… 29.23 - Quaternary ammonium salts and hydroxides; lecithins and other … Lecithins and other phosphoaminolipids 2923.30 - Tetraethylammonium perfluorooctane sulphonate 2923.40 - … 1 R 2 R 3 R 4 N + where R 1 , R 2 , R 3 and R 4 may be the same or different alkyl or aryl radicals (methyl, ethyl, …Section XV > Chapter 73 > Heading 7308 > 7308.30
… Doors, windows and their frames and thresholds for doors …