… These cold‑working methods also allow different surface finishes to be obtained including polished surfaces , as mentioned in the Explanatory Note to …
… soluble in water; also presented in concentrated solution, yellowish in colour. Used as a reducing agent in organic … These include : barium thiosulphate (pigment with a pearly sheen); aluminium thiosulphate (used in organic synthesis); …
… Primary cells and batteries may be manufactured to various shapes and sizes. Common types are those having a cylindrical or button shape. Certain cells (e.g., wet cells and some inert cells) …
… a handle. In some types, the cylinder may be replaced by a sheet‑metal disc made on the hill and dale principle. … Bulb‑operated horns and warning horns (e.g., for vehicles), ships’ sirens, portable or fixed hand‑operated roof sirens; …
… tubing, sometimes contained within a separate chamber of sheet metal into which the flue gases or exhaust steam are … (1) Surface-condensers . These consist of a cylindrical shell enclosing a system of tubes. The steam is led into the …
… assembled, the various components being enclosed in a shell or mounted on a common base. The larger boilers … of separate elements for assembly on site, either within a shell or within a structure of brickwork. (B) SUPER-HEATED …
