| 摘要 |
<p>A method (10) for tracing at least a determinate material within the range of a plurality of raw materials used to make a product, comprises at least a first step (25), in which said determinate material is identified with respect to the other raw materials and a first identification code is associated with said determinate material, and a second step (31, 33) in which a second identification code, derived from the first identification code, is associated with the product, for the univocal identification in the product of the determinate material.</p> |
