… (1) Mosaic cubes , generally coloured or with one surface gilded, and small glass rectangles and other flat … etc., formed of glass (usually coloured in the mass, surface-coloured or made of antique glass) of all shapes, …
… strip form, in all thicknesses, often with a fairly large surface area; the sheets, etc., are generally backed on one or (usually) both surfaces with textile fabric, glass fibre fabric, paper or …
… by simple trimming or de‑scaling (to remove the set or top surface consisting largely of cuprous oxide) or by shaving, … or other casting defects or which have been machined on one surface for inspection purposes (quality control). Sintered …
… thermic and mechanical considerations. The external surface is very smooth in order to prevent the formation of … they may contain oil to prevent contamination of the surface by conducting materials. Insulators may be made of …
… subsidiary to their main function . These normally perform their main function in a stationary position. They … a similar manner, but is self‑propelled and equipped with powerful engines. These are used for the repair or transport …
… The goods are used to produce a coloured or opaque surface in the course of ceramic firing. They may be … compounds, lead oxide, boric acid, etc.) giving a smooth surface, either matt or glossy, by vitrification under …
… ion-exchange) which may include a modification of the surface structure (commonly known as “chemically toughened … heat and pressure, sometimes after spraying the inside surfaces of the glass sheets with a special type of …
… mould of a mechanical press. (4) A cavity is ground in one surface of a piece of round or rectangular (including … into blanks. Blanks from either source require additional surfacing, mainly polishing, before they can be used as …
… rings, particular profiles) to give the maximum anode surface suited to the articles to be plated, and in the case … depolarise the anodes to ensure even attack over the whole surface and avoid loss of nickel through formation of …
