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summary
Mechanical pencils - Part 3: Black leads; bending strengths of HB leads; identical with ISO 9177-3:1994. (Füllstifte - Teil 3: Graphitminen; Biegefestigkeit von HB-Minen.)
Details
Publisher
DIN
File size
623.08 KB
Pages
3
Format
PDF
Publication date
1995-01-01