… are used primarily in optical apparatus, particularly in endoscopes of heading 90.18. (B) Polarising material in … (6) Polarising elements (for microscopes or other scientific instruments; for sunglasses; for spectacles for … into two components. (9) Halftone or similar printing screens, generally round or rectangular (including square), …
… of the plant, but have been loosened by the retting. (3) Scutched hemp which comprises the isolated fibres, sometimes … 2 m or more in length, separated from the plant by scutching. (4) Combed hemp or hemp fibres otherwise … etc., operations, and garnetted stock obtained from rags, scrap rope or cordage, etc. The tow and waste are classified …
… filter paper, preparation of tantalum, of fluorides, scouring and pickling foundry pieces, in organic synthesis, … opacifiers, vitrifiable enamels or mineral greens such as Scheele’s green (copper arsenite) or Schweinfurt green (copper acetoarsenite); in small doses, as …
… in mining, navigation, etc., (including magnetic compasses, gyroscopic compasses, gyromagnetic compasses, binnacle … are always automatic. One type operates by means of a screw or propeller (a screw is mounted in the ship’s stream and is connected to a …
… 8). They may be ordinary handkerchiefs, or squares of the scarf type worn either as head covering, round the neck or … these handkerchiefs and squares, which may be straight or scalloped, are hemmed, rolled, bordered or provided with … number of squares having the character of handkerchiefs or scarves woven together and which, by simply cutting along …
… subjected to the following surface treatments : (1) Descaling, pickling, scraping and other processes to remove the oxide scale and crust formed during the heating of metal. …
… they have undergone processes extending beyond cleaning or scraping, simple sawing to remove useless parts, cutting … extending beyond the straightening and surface‑levelling of scales (this last operation is exceptional since unworked … combs). (o) Articles of Chapter 97 (e.g., original sculptures and statuary; collectors’ pieces of zoological …
