| 摘要 |
The tool consists of a matrix (2) with a cavity (11) for each symbol having outer (12) and inner (14) cutting edges with adjacent bases (13, 15), and a die (1) with a relief shape (3) corresponding to the cavity and made with outer (4) and inner (6) cutting edges. The inner base (15) of the matrix projects beyond the outer base (13), and the matrix cavity has an elastic insert (16) with lips (17).
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