| 摘要 |
<p>A composite wire for the manufacture of semifinished products to be subjected to an emptying process in the field of goldsmithery. The wire comprises a support core (1) developing essentially along one of its longitudinal axes in a nonprecious metal that is removable by chemical or electrochemical means as well as a plurality of sections (3, 4 and 5) in precious metal having an essentially longitudinal development of which at least a portion of each one is radially engaged in the core. <IMAGE></p> |
