DS/ISO 128:1983 Technical drawings. General principles of presentation was changed to DS/EN ISO 128-20:2002 Technical drawings - General principles of presentation - Part 20: Basic conventions for lines.
DS/ISO 128:1983 Technical drawings. General principles of presentation was changed to DS/EN ISO 128-21:2002 Technical drawings - General principles of presentation - Part 21: Preparation of lines by CAD-systems.
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