… the cylinder-head must be pre-heated by a blow-lamp or a glow plug must be used. Compression-ignition internal … In the latter case the connecting-rods are coupled to a single crank shaft, and the cylinders, fed separately, may …
… process), or through a cooling chamber. The nozzles may be single or contain a great number of holes (sometimes many … . (c) Machines for spinning continuous or discontinuous glass fibres or yarns ( heading 84.75 ). …
… rotary plaster ovens. (9) Ovens and furnaces used in the glass or ceramic industries, including tunnel ovens. (10) … graphite or filters, or for firing earthenware or glass containing radioactive slag. (12) Cremation furnaces. …
… in this heading include : (A) Ball bearings , with single or double rows of balls. This group also includes … groove of triangular section. (B) Roller bearings , with single or double rows of rollers of any shape (cylindrical, …
… (3) Barretters consisting of iron filaments assembled in a glass tube filled with hydrogen or helium; these have the … or positive temperature coefficient (usually mounted in glass tubes), and non‑linear resistors depending on voltage …
