UNE-EN ISO 7083:2021 Technical product documentation - Symbols used in technical product documentation - Proportions and dimensions (ISO 7083:2021) (Endorsed by Asociación Española de Normalización in July of 2021.)
2021UNE-EN ISO 7083:2021 Technical product documentation - Symbols used in technical product documentation - Proportions and dimensions (ISO 7083:2021) (Endorsed by Asociación Española de Normalización in July of 2021.)
1996UNE-EN ISO 7083:1996 TECHNICAL DRAWINGS. SYMBOLS FOR GEOMETRICAL TOLERANCING. PROPORTIONS AND DIMENSIONS. (ISO 7083:1983).