AFNOR - NF ISO 9177-3
Mechanical pencils. Part 3 : black leads. Bending strengths of hb leads.
active, Most Current
| Organization: | AFNOR |
| Publication Date: | 1 December 1994 |
| Status: | active |
| Page Count: | 6 |
| ICS Code (Drawing equipment): | 01.100.40 |
Document History
NF ISO 9177-3
December 1, 1994
Mechanical pencils. Part 3 : black leads. Bending strengths of hb leads.
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