Semi products are raw materials obtained by processing "basis" raw materials. They have a very high added value that increases their properties, but limits the range of applications.
They are not final products; as they can be used to produce other products they can be considered as materials, yet, at the same time, they already include a substantial processing which distinguishes them from the "basis" materials.
ExamplesFlat sound producing materials
Honeycomb ceramics
Polymet(r) metalized textile
Starlight(r) transparent panel
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