… still covered with a fine down formed of very short fibres (usually less than 5 mm long). These fibres are known as … or rendered absorbent. They may be presented in bulk or strongly compressed in the form of sheets or slabs. … from the esparto grass ( Stipa tenacissima ) and the grass Lygeum spartum which grow in Africa and Spain. Their main …
… are rotary presses. In their simplest form, these presses usually consist of a cylinder with two semi-cylindrical … scarves or handkerchiefs). (2) Roller printing machines , usually consisting of a large central cylinder (pressure … points on a positively charged photoconductive surface (usually a drum) leaving a positively charged replica of the …
… may be in the active or inactive state. Active yeasts generally provoke fermentation. They consist essentially of … (almost exclusively of the genus Saccharomyces ), which multiply during alcoholic fermentation. Yeasts may also be … , produced by the propagation under special conditions of specially cultured strains of yeast in a carbohydrate medium …
… arsenic, or their compounds . - Containing mainly zinc : 2620.11 - - Hard zinc spelter 2620.19 - - … from the treatment of silver‑bearing ores. (8) Spent catalysts usable only for the extraction of metal or for the manufacture of chemicals. (9) Residual carnallite lyes, mainly used for obtaining magnesium chloride. (10) …
… appliances which, in the vast majority of cases, are used only in professional practice (e.g., by doctors, surgeons, … shears, etc.). Such articles are classified in this heading only when they are clearly identifiable as being for medical …
… or other microscopes ‑ heading 90.11 or 90.12 ), or for analysing materials, or measuring properties such as … ( heading 90.27 ). (b) Instruments or apparatus designed only for ordinary measurement or checking of width, … 90.31 ). The machines and appliances of this heading are generally used in industrial or research laboratories for …
… current of different voltage, impedance, etc. These usually consist of two or more coils of insulated wire wound … etc. An AC in one coil (the primary circuit) induces an AC usually at different values of current and voltage in the … circuit). In certain cases (auto transformers) there is only a single coil, part of the winding of which is common …
… heating elements. In these heaters water is heated gradually. (3) Dual‑system heaters in which the water is … with a thermostatic control to operate them electrically only when the alternative means is insufficient. (4) … of different shapes and forms depending on their use, are generally used in tanks, vats, etc., for heating liquids, …
… ‑ Road tractors for semi-trailers : 8701.21 - ‑ With only compression-ignition internal combustion piston engine … electric motor as motors for propulsion 8701.24 - ‑ With only electric motor for propulsion 8701.29 - ‑ Other 8701.30 … function. The heading does not cover propelling bases specially designed, constructed or reinforced to form an …
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