| 摘要 |
The peelable block (10) comprises a stack of sheets (12A, 12B), each one of a predetermined thickness. The stack of sheets comprises at least one group of transparent successive sheets (12A, 12B). The stack of sheets comprises an identification sheet (12C) on which at least one distinctive sign (14, 16) is formed, arranged so as to be visible through a group of successive transparent sheets (12A, 12B).
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