
Technical Drawings - General Principles Of Presentation - Part 20: Basic Conventions For Lines
出版:British Standards Institution

专家解读视频
Defines the line types, designations and configurations, in addition to general rules for draughting of lines used for technical drawings, such as diagrams, plans or maps.
© British Standards Institution 2013
Renumbered and superseded by BS EN ISO 128-20.
Supersedes BS 308-1(1993), BS 308-2(1985) & BS 308-3(1990).
(01/2006)
ISO 128-20:1996 - Identical