… machines which, being of a kind specially designed for making wire grill or netting, differ from the ordinary … wire are excluded ( heading 84.79 , etc.). Machinery for making ropes or stranded cables of metal wire or of mixed …
… aircraft to be launched. The acceleration required for the take‑off is provided by the action of compressed air, steam, … ramps and towers which merely guide rockets during take‑off without propelling them, the rockets climbing under …
… mordant in dyeing (alkaline mordant); in the preparation of lakes; for sizing paper; as a filler for soap; for hardening … for purifying industrial water (ion exchanger); in paper‑making (sizing); in the manufacture of glass, soap, special … also used as a mordant in textile printing, for preparing lakes and catalysts and in organic synthesis. (c) Calcium …
… The principal tanning extracts are those from oak, chestnut, quebracho, pines, wattle (mimosa), sumach, … tannin (gallotannic acid). Other tannins include oak bark tannin (quercitannic acid), chestnut wood tannin …
… cames of other metals, particularly copperlight glazing, to make them more fire resistant. (3) Multicellular or foam … This gives colourless or coloured glass with a structure akin to that of pumice-stone; it has a specific gravity not …
… chemical and mechanical process similar to that used for making paper (reconstituted mica). These thin sheets are … of windows for ovens, stoves, furnaces, etc., of unbreakable lamp “glasses”, and of “glasses” for goggles, …
… seals) constitute mechanical assemblies which form a leakproof joint between flat, rotating surfaces to prevent high-pressure leakage in the machine or apparatus on which they are …
