is usually given in terms of the content or capacity of the different furnaces. Older specifications, for example in the case of crucible furnaces, referred to the contents within the furnace coil and the nominal capacity e.g. 4/5.2 t or 10/13 t. For channel furnaces for example, the size might be stated as 45/60 t, or for casting units 5/6.2 t.
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