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MS ISO 9180:2003 (CONFIRMED:2012)
Black leads for wood-cased pencils - classification and diameters (ISO 9180:1988, IDT)
This International Standard specifies a classification and diameters for black leads used for wood-cased pencils.
1st Confirmation
• (none) / (none) / (none)
PDF
01/08/2019
10
NSC C - Consumer Interests
97.180
15.00