Harmonized System

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Section XVIII > Chapter 90 > Heading 9031

Explanatory notes

… semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in … ). (12) Plumb‑lines . (13) Spherometers to measure the curvature of spherical surfaces (lenses, mirrors, spectacle … by the photoelectric process. (The differences in the current from a photoelectric cell depend on how much of a …

Section VI > Chapter 38 > Heading 3824

Explanatory notes

… prepared for use as a desulphuriser in steel‑making. (7)   Cultured crystals ( other than optical elements) weighing … on immersion in water. Oxylith is often in the form of cubes or slabs. (17) Additives to harden varnish or glue , …

Section XVIII > Chapter 90 > Heading 9015

Explanatory notes

… essentially of a float and recorder. (2)   Bucket‑wheel current meters and hydrometric paddle‑wheels , for measuring the speed of currents in rivers, canals, etc. (3)   Swell or tide … wind speed. One type consists of a rotor carrying three cup‑shaped blades mounted on a vertical axis, readings being …

Section XVI > Chapter 85 > Heading 8505

Explanatory notes

… either in one piece or laminated. The passing of electric current in the coil confers magnetic properties on the core, … as such by their shape and composition, generally being cubes or discs (tags) of metal or of agglomerated ferrite … passes and pulled out again by a spring when the current is cut off. The heading also covers variable speed couplings, …

Section XVI > Chapter 84 > Heading 8455

Explanatory notes

… Rolling mills are of various types according to the particular rolling operations for which they are designed, … width of the rolls, but the working rollers have channels cut in their surface so that a gap (or pass) of a particular … on the outside. In certain cases rollers with eccentrically cut channels to give a variable pass are used (step …

Section XVI > Chapter 84 > Heading 8459

Explanatory notes

… boring, etc. (2)    Drilling machines . These are used for cutting cylindrical holes, including recessed holes, in … adjustable boring heads, boring heads with inset cutters) or with tools working on a guideway (adjustable, …

Section XIII > Chapter 70 > Heading 7010

Explanatory notes

… containers remain in this heading even if they are ground, cut, sand-blasted, etched or engraved, or decorated (this applies, in particular, to certain perfume or liqueur bottles), banded, …        Like bottles, these articles may be sand-blasted, cut, etched or engraved, decorated, banded, etc. (C)  …

Section XVIII > Chapter 92 > Heading 9207

Explanatory notes

… causes variations in the fields which in turn set up weak current changes in the coils. These currents, which are of predetermined frequencies, are … to loudspeakers.         This principle is used in particular for the “organ” type of instrument.         In …

Section XVI > Chapter 85 > Heading 8531

Explanatory notes

… cell; when the ray is interrupted, the change in current in the photoelectric cell circuit sets off the …

Section XVI > Chapter 84 > Heading 8421

Explanatory notes

… gun‑cotton manufacture. (8)         Separators for yeast cultures. (9)         Centrifuges for the chemical industry … and valves for cleaning the filtering elements by a cross‑current of water. (5) Filter presses . These consist of a … part of the cone by a tangential pipe and the turbulent currents thus set up decrease sharply as the gases approach …