… lasers which have been adapted to perform quite specific functions by adding ancillary equipment consisting of … classified with the machines or appliances having a similar function. Examples include : (i) Machine‑tools …
… RINGS (1) Containing one hetero-atom : (a) Of oxygen : Furan group (heading 29.32)* . (b) Of sulphur : Thiophen … three or more hetero-atoms : (a) One oxygen, two nitrogen : Furazan group (heading 29.34)* . (b) Three nitrogen : …
… a quartz envelope (usually in an outer envelope of glass), furnished with electrodes and containing, under low … germicidal or other purposes. They usually consist of a fused quartz tube containing mercury; they are sometimes …
… reduction of silicon dioxide using electric arc-furnaces. It is a poor conductor of heat and electricity, … phosphates mixed with sand and carbon in an electric furnace. There are two main varieties of phosphorus : (a) …
… and watches combined with some other object (an article of furniture, a lamp, inkstand, paperweight, writing‑pad, … if the latter is incorporated in the movement) to the furthest opposite outer plane, without taking account of any …
WCO Trade Tools provides essential information to support your trade activity.
