
MECHANICAL PENCILS - PART 3: BLACK LEADS - BENDING STRENGTH OF HB LEADS
出版:International Organization for Standardization

专家解读视频
This part ofISO9177specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings
NEN ISO 9177-3 : 1994 - Identical
SS-ISO 9177-3:1996 - Identical
SANS 9177-3 : 1ED 2009(R2016) - Identical
DIN ISO 9177-3 : 1995 - Identical
BIS IS/ISO 9177-3 : 1994(R2010) - Identical
NF ISO 9177-3 : 1994 - Identical
BIS IS/ISO 9177-3 : 1994(R2010) - Identical
DIN ISO 9177-3 : 1995 - Identical
SS-ISO 9177-3:1996 - Identical
NF ISO 9177-3 : 1994 - Identical
SANS 9177-3 : 1ED 2009(R2016) - Identical
NEN ISO 9177-3 : 1994 - Identical