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sklademVydáno: 2020
ISO 22764:2020
ISO 22764:2020-Jewellery and precious metals — Fineness of solders used with precious metal jewellery alloys
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| Označení normy: | ISO 22764:2020 |
| Počet stran: | 3 |
| Vydání: | 1 |
| Vydáno: | 2020 |
DESCRIPTION
ISO 22764:2020
This document specifies the precious metal content in solders suitable for use in the production of jewellery made of precious metal alloys.