NF EN ISO 128-21:2001现行
Technical Drawings - General Principles Of Presentation - Part 21: Preparation Of Lines By Cad-systems
出版：Association Francaise de Normalisation
专家解读视频
Defines procedures for calculating important basic types of non-continuous lines and their line elements.
Indice de Classement: E04-524-2 Supersedes NF ISO 128-21: 1997 XP (01/2002)
ISO 128-21:1997 - Identical
NEN EN ISO 128-21:2001 - Identical
SS EN ISO 128-21 Ed. 1 (2001) - Identical
UNE EN ISO 128-21:2002 - Identical
NS EN ISO 128-21 Ed. 1 (2002) - Identical
UNI EN ISO 128-21:2002 - Identical
I.S. EN ISO 128-21:2002 - Identical
NBN EN ISO 128-21:2001 - Identical
ONORM EN ISO 128-21:2002 - Identical
DIN EN ISO 128-21 (2002-12) - Identical
BS EN ISO 128-21:2001 - Identical
SN EN ISO 128-21:2001 - Identical
