Harmonized System

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Section XVI > Chapter 84 > Heading 8411

Explanatory notes

… turbine is sometimes referred to as a “free turbine”, meaning that it is not mechanically coupled to the compressor and compressor …

Section XV > Chapter 73 > Heading 7306

Explanatory notes

… thickness and tighter size tolerances. These cold‑working methods also allow different surface finishes to be obtained including polished surfaces , as mentioned in the Explanatory Note to heading 73.04. See the … galvanised or black tubes (so‑called gas tubes) for high or medium pressure steam or water distribution in buildings, as …

Section X > Chapter 48 > Heading 4808

Explanatory notes

… (2)   Creped or crinkled papers .        These are made by mechanical treatment of the webs of paper in the moist … with a pattern, or by pressing it with engraved or embossed metal plates. These products vary considerably in quality … and paperboard .        These are made by punching holes mechanically with dies in the paper or paperboard in the dry …

Section X > Chapter 48 > Heading 4821

Explanatory notes

… or self-adhesive) or designed to be affixed by other means, e.g., string. These labels may be plain, printed to … ties, clasps, hooks or other fasteners or reinforced with metal or other materials. They may be perforated or put up … to be used, for example, for publicity, advertising or mere decoration, e.g., “comic stickers” and “window …

Section XII > Chapter 66 > Heading 6603

Explanatory notes

… of articles of heading 66.01 or 66.02. 6603.20 - Umbrella frames, including frames mounted on shafts (sticks) 6603.90 … of their constituent material (including precious metal or metal clad with precious metal or natural, …

Section X > Chapter 47 > Heading 4702

Explanatory notes

… this Chapter. This pulp is specially refined or purified to meet the requirements of its intended use. It is used for … a base for photosensitive paper, filter paper and vegetable parchment). According to the final use or to the end … is superior in fibre length and richer in cellulose than mechanical pulp made from the same raw material. The …

Section VII > Chapter 39 > Heading 3910

Explanatory notes

… The products include silicone oils, greases, resins and elastomers. (1)   Silicone oils and greases are used as … by the definition of synthetic rubber in Chapter 40, have some extensibility which is not changed by high or low … to high or low temperatures. An application in the medical field is the manufacture of automatic brain valves …

Section VI > Chapter 28 > Heading 2819

Explanatory notes

… (manufacture of isatin, indigo dyes, etc.); also used in medicine and, when mixed with kieselguhr (“epurite”), for … preparation of abrasive compounds and refractory bricks for metal furnaces. It is also used for obtaining anti‑rust products, and in chromium metallurgy. Chromite, natural chromium oxide containing iron …

Section XV > Chapter 72 > Heading 7215

Explanatory notes

… - Of free-cutting steel, not further worked than cold-formed or cold-finished 7215.50 - Other, not further worked … working (such as drilling or sizing, or to further surface treatments than are allowed for products of heading 72.14, … Operations intended exclusively to detect flaws in the metal. …

Section IX > Chapter 44 > Heading 4413

Explanatory notes

… treated to increase its density or hardness and improve its mechanical strength or resistance to chemical or electrical … case the treatment applied being in excess of that required merely to produce a good bond between the layers. Two main … usually with thermosetting plastics or with molten metal. Impregnation with thermosetting plastics (e.g., …

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