Publikuar
This document specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.
WITHDRAWN
ISO 9177-3:1994
PUBLISHED
ISO 9177-3:2022
60.60
Standard published
26 jan 2022
Lapsa mekanikë (portamina) për vizatime teknike- Pjesa 3: Majat e portaminave - Rezistenca në përkulje e majave HB
60.60 Standard published