Harmonized System

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Section X > Chapter 48 > Heading 4806

Explanatory notes

… is made by immersing unsized and unloaded paper of good quality in sulphuric acid for a few seconds. The action of … impervious to water and gas. The heavier and more rigid qualities of vegetable parchment paper, and the product … “imitation parchment paper”) are made directly from pulp (usually sulphite pulp) by reducing the fibres to a state of …

Section XIV > Chapter 71 > Heading 7106

Explanatory notes

… silver and its alloys in the following forms : (I) Powder , usually in the form of finely divided powder, obtained by … rods, sections, wire, plates, sheets and strip . These are usually obtained by rolling or drawing; strip and discs, … parts of chemical apparatus). (V)  Foil (for silvering) is usually obtained by hammering or beating thin sheets of …

Section XVI > Chapter 84 > Heading 8413

Explanatory notes

… incorporate a vibrating membrane of metal, leather, etc. (actuated either directly or through a fluid transmission) by …

Section XVI > Chapter 84 > Heading 8472

Explanatory notes

… print addresses on invoices, letters, envelopes, etc.; they usually operate by means of a series of small card or metal … documents . (19)    Cheque‑writing machines ; these are usually small machines specially designed for the purpose. … (e.g., when inserting, in words, a sum of money). They usually employ special indelible and penetrating inks, and …

Section XV > Chapter 73 > Heading 7302

Explanatory notes

… rails and lift rails).        Check‑rails , also known as guard rails or safety rails, are fixed to track rails to … support the rails and keep them parallel.        They are usually pressed into final shape after rolling, but they may … heading whether or not drilled or punched. (5)   Chairs (usually of cast iron) are used to fix bull‑head rails to the …

Section III > Chapter 15 > Heading 1518

Explanatory notes

… by heating oils, generally with the addition of small quantities of oxidising agents. These oils are used in the … rapidly and forms a film which absorbs less water than the usual film of dried oil, and has greater mechanical … as linseed oil) to which have been added in the cold small quantities of driers (e.g., lead borate, zinc naphthenate, …

Section XVIII > Chapter 90 > Heading 9011

Explanatory notes

… further magnifies the observed image. The optical system usually also incorporates provision for illuminating the … parts), may be fitted with projection devices which are usually in the form of a small circular screen fitted on top … incorporating a photographic or cinematographic camera (usually specially designed for this purpose), or of a …

Section XXI > Chapter 97 > Heading 9705

Section XVI > Chapter 84 > Heading 8457

Explanatory notes

… machines). (A) MACHINING CENTRES Machining centres are individual machines, i.e., all the machining operations are …

Section XVI > Chapter 84 > Heading 8480

Explanatory notes

… Metals and metal carbides. (II)  Glass (including fused quartz or other fused silica) or mineral materials such as … (A) MOULDING BOXES FOR METAL FOUNDRY These are frames usually of cast iron or steel and usually rectangular or round. They hold the sand mould …