NF EN 28654-1993 标准详情
- 标准号:NF EN 28654-1993
- 中文标题:金合金的颜色--颜色的定义,范围和命名
- 英文标题:Colours of gold alloys. Definition, range of colours and designation.
- 标准类别:法国国家标准
- 发布日期:1993-08-01
Specifies a limited number of colours of gold alloys. Applies to jewellery, and to watch cases and accessories with gold alloy coverings or watch cases and accessories made of gold alloys. Coverage includes measurement method and colour slips.
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