Mechanical pencils for technical drawings — Part 3: Black leads — Bending strengths of HB leads
Porte-mines pour le dessin technique — Partie 3: Mines graphite — Résistance à la flexion des mines HB
01.100.40 - Drawing equipment.
97.180 - Miscellaneous domestic and commercial equipment. Including scissors, aquarium equipment, articles for domestic animals, battery chargers, mops, insect electrocutors, lighters, matches, paper clips, pens, pencils, etc.
Anula a: ISO 9177-3:1994
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