| 摘要 |
<p>Preservation state indicator for frozen or refrigerated products of industrial, medical or foodstuff type, characterised by the use of a case (1), made of transparent plastic or glass, of any geometrical shape, whose filling orifice is closed by a wax plug (3), poured hot onto the surface of the liquid located inside the case, which makes it possible to obtain complete filling of the internal cavity of the case (1). <IMAGE></p> |
