PD 7303-1981 标准详情
- 标准号:PD 7303-1981
- 中文标题:
- 英文标题:electrical and electronic graphical symbols for schools and colleges
- 标准类别:欧洲PD
- 发布日期:
Selection of 270 symbols from BS 3939 with 160 selected for A1 wall chart (not available separately). For schools, colleges, polytechnics and universities.
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