… (3) Grinding machines , of different types (e.g., internal surface grinders, centreless surface grinders, … They can work the external surface of the workpiece, the internal surface or both (universal cylindrical grinding …
… the mechanical working of metal, or scrap which consists of worn‑out or broken metal articles is excluded ( Section … metal or for the manufacture of chemicals. (9) Residual carnallite lyes, mainly used for obtaining magnesium …
… still images. The most common type is the projection lantern (or diascope) which is used to project the image of … Profile projectors ( heading 90.31 ). (k) Toy magic lanterns ( heading 95.03 ). …
… powder ( yellow oxide ). These oxides are toxic and turn black on exposure to light. They are used in the … (HgSO 4 ). White, anhydrous and crystalline masses, turning black in the light, or hydrated crystalline flakes …
… (ring‑shaped devices designed to support long parts during turning, in order to prevent buckling and overcome … (3) Auxiliary attachments for notching, for spherical turning , etc . (4) Copying attachments (including those … for the automatic reproduction of work according to a pattern. (5) Surface‑finishing attachments for lathes, …
… of the course (and any changes of course) during a ship’s journey. (3) Inclinometers ; for measuring rolling. (4) Logs … sea bed. (6) Echo sounding instruments . An audible echo returned by the sea bed is detected on board ship by a very …
… figured-rolled glass having one surface impressed with patterns (stripes, diamond patterns, ridges, etc.); corrugated glass and cast so-called … engraved casting tables or an engraved roller form the patterns in the semi-molten glass. In the rolling method, …
