English version

indelible ink/pencil/marker etc

From Longman Dictionary of Contemporary Englishindelible ink/pencil/marker etcindelible ink/pencil/marker etcMARKink etc that makes a permanent mark which cannot be removed indelible
Examples from the Corpus
indelible ink/pencil/marker etcAll voters' hands will be dyed with indelible ink, and both the vote and the count will be conducted locally.
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