
Technical drawings - General principles of presentation - Part 21: Preparation of lines by CAD systems. (ISO 128-21:1997)
NORM herausgegeben am 30.5.2002
Designation standards: UNE-EN ISO 128-21:2002
Note: UNGÜLTIG
Publication date standards: 30.5.2002
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE