Publikuar
This document specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing, as specified in ISO 20318-1.
PUBLISHED
ISO 20318-2:2019
60.60
Standard published
5 mar 2019
Lapsa mekanikë (portamina) dhe maja për përdorim të përgjithshëm - Klasifikimi, dimensionet, cilësia dhe metodat e provës - Pjesa 2: Majat e zeza
40.60 Close of voting
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