Harmonized System

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Section XIII > Chapter 68 > Heading 6804

Explanatory notes

… be put to use even if the abrasive had not been applied). Saws with cutting teeth covered with abrasive therefore … essentially of natural stone, agglomerated or not, (e.g., sandstone, granite, lava, flint, molasse, dolomite, quartz, …

Section XV > Chapter 81 > Heading 8112

Explanatory notes

… special mirrors. (F) HAFNIUM Hafnium is extracted from the same ores as zirconium (zircon, etc.) and has properties … as solders and for brazing. Other alloys containing the same metals (e.g., certain bearing alloys) may, however, be …

Section XVI > Chapter 85 > Heading 8539

Explanatory notes

… or quartz containers, of various shapes, containing the necessary elements for converting electrical energy into … (metal or carbon) which is heated to incandescence by the passage of an electric current, the glass envelope … or bayonet type for fixing in the lamp‑holder, are the necessary electrical contacts. These lamps are of various …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… an inert atmosphere in electric lamp bulbs). (4)   Krypton (same use as argon, or to give a pale violet light). (5)   … solid obtained by treating mineral phosphates mixed with sand and carbon in an electric furnace. There are two main …

Section XIII > Chapter 70 > Heading 7019

Explanatory notes

… :  (I)    Mechanical drawing . In this process a mixture of sand, limestone and kaolin is melted in a furnace to produce … which is heated by the flame from a furnace, but, at the same time it is drawn into filaments by means of centrifugal …

Section XVI > Chapter 85 > Heading 8515

Explanatory notes

… welding (TIG‑Tungsten Inert Gas); submerged arc welding (SA), electro‑slag or electro‑gas welding, etc.). (2) Plasma …       The source of heat is a constricted arc which, by ionisation and dissociation, converts auxiliary gas into a … arc apparatus which melt down metals or cermets and at the same time spray them by means of compressed air. The heading …

Section XX > Chapter 96 > Heading 9601

Explanatory notes

… processes extending beyond cleaning or scraping, simple sawing to remove useless parts, cutting (sometimes followed … it can, therefore, be worked by moulding in the same manner as tortoise‑shell.        Polished or unpolished …

Section XVI > Chapter 84 > Heading 8418

Explanatory notes

… of water. The heading therefore excludes  : (a)   Freezing‑salt type freezers ( heading 82.10 or 84.19 ). (b)   …

Section V > Chapter 27 > Heading 2710

Explanatory notes

… , tri-isobutylene , etc. These are mixtures of unsaturated acyclic hydrocarbons (octylenes, nonylenes, homologues and isomers thereof, etc.) and saturated acyclic hydrocarbons.        They are obtained …

Section VI > Chapter 28 > Heading 2801

Explanatory notes

… (28.05). Ruthenium........ Ru 44 Precious metal (71.10). Samarium......... Sm 62 Rare‑earth metal (28.05). … action of chlorine on the alkaline bromides contained in saline mother‑liquors, or by electrolysing bromides. It is a … turning it yellow, and ignites organic substances such as sawdust. It is presented in glass or pottery containers. It …