ISO 9202-2019 标准详情
- 标准号:ISO 9202-2019
- 中文标题:
- 英文标题:Jewellery and precious metals -- Fineness of precious metal alloys
- 标准类别:国际标准化组织ISO
- 发布日期:
This document specifies a range of fineness of precious metal alloys (excluding solders) recommended for use in the field of jewellery.NOTE There is a possibility that national legal requirements for the designation, marking, and stamping of fi
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