… (lamps, flaps, illuminated numbers, etc.), and whether operated by hand (e.g., door bells) or automatically (e.g., … which is set off automatically when the detecting part operates. Burglar alarms operate by various means, e.g. : …
… 45.03 ‑ Articles of natural cork (+). 4503.10 ‑ Corks and stoppers 4503.90 ‑ Other This heading covers, inter alia : (1) Corks and stoppers of all kinds, of natural cork, including blanks …
… are wound onto bobbins and can be used without further operation for spinning into woollen yarns. If, on the … in gilling machines (also known as “gill boxes”) which open out and straighten the fibres. During the subsequent … products are put through a series of drawing and doubling operations which convert them into rovings. These are wound …
… XV ). (e) Salts of Chapter 31 . (f) Pigments, colours, opacifiers, enamels and other preparations included in … etc. ( heading 38.10 ). (ij) Cultured crystals (other than optical elements) weighing not less than 2.5 g each, of the … soluble in cold water. Uses include the manufacture of opaque glass and enamels, synthetic stones, anti‑acid …
… is in small grey particles and has remarkable catalysing properties. These colloidal metals (e.g., gold) remain … when exposed to light; it is packed in dark‑coloured opaque containers. Used in photography, in the manufacture … very soluble in water; used in medicine, photography and optics. Silver cyanide (AgCN), a white powder …
… by the passage of an electric current, the glass envelope (sometimes coloured) being either evacuated or … the efficiency of the lamp (fluorescent lamps). Some lamps operate on high voltages, others on low. The principal lamps … have supplementary electrodes for starting purposes. In open arc‑lamps the arc burns in free air; in others it is in …
… centres)) which can carry out different types of machining operations on a single workpiece either : (a) by automatic … centres are individual machines, i.e., all the machining operations are performed on a single (multi‑function) …
… line (upright or inverted), in two symmetrical obliquely opposed rows (V-engines), horizontally opposed on opposite sides on the crank shaft or, for certain aircraft … engines, radially. The rotary piston engine (Wankel engine) operates on the same general principle as the conventional …
… ‑ Chloride oxides and chloride hydroxides : 2827.41 ‑ ‑ Of copper 2827.49 ‑ ‑ Other ‑ Bromides and … or brown in colour, according to the degree of purity. A hygroscopic product, it may be in cast or melted form, in … medicaments, as a catalyst and in textile printing. (14) Copper chlorides . (a) Cuprous chloride (copper …
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